Answers
Given data
*The given initial speed of an airplane is u = 0 m/s
*The engine exerts a constant force is F = 78.0 kN = 78.0 × 10^3 N
*The given mass is m = 9.20 × 10^4 kg
*The given final speed of the plane is v = 75.0 m/s
The acceleration of the airplane is calculated by using the relation as
\(\begin{gathered} F=ma \\ a=\frac{F}{m} \\ =\frac{78.0\times10^3}{9.20\times10^4} \\ =0.848m/s^2 \end{gathered}\)The formula for the distance of the runway is given by the kinematic equation of motion as
\(\begin{gathered} v^2=u^2+2as \\ s=\frac{v^2-u^2}{2a} \end{gathered}\)Substitute the known values in the above expression as
\(\begin{gathered} s=\frac{(75.0)^2-(0)^2}{2(0.848)} \\ =3316.62\text{ m} \end{gathered}\)Hence, the distance of the runway is s = 3316.62 m
Related Questions
3(8+2)
----------
4^2-1
Answers
2. 10 times 30
3. 4^2= 16 then you subtract it from 1 = 15
Answer: 30/15=2
If a planet has an orbital eccentricity equal to 0.70, then its orbit is
Closer to a perfect circle then a straight line
Almost rectangular
A very elongated ellipse
Almost parabolic
Answers
If a planet has an orbital eccentricity equal to 0.70, then its orbit is
a very elongated ellipse.What is eccentricity?Eccentricity is a measure of how squashed an ellipse is compared to a perfect circle.
The value of eccentricity ranges from 0 to 1, where 0 represents a perfect circle and 1 represents a parabolic orbit (which is not a closed orbit).
An eccentricity of 0.70 indicates that the planet's orbit is significantly elongated and not close to a perfect circle.
Therefore, the correct answer is - A very elongated ellipse.
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Hello. I am confused on how to find this answer. I know it isn’t negative
Answers
Answer: Positive
Explanation:
Are you familiar with differential calculus? In a plot of position vs. time, the velocity at any given moment is the derivative at that point. A derivative is just the slope. For this plot, the slope is x/t.
Looking at t = 1s, the slope is 1/1. This means the velocity is a positive 1m/s at time equal to 1 second
in a typical cop movie we see the hero pulling a gun firing that gun straight up into the air and shouting
Answers
It is not recommended to fire a gun straight up into the air.
When a bullet is fired into the air, it will eventually come down and can pose a danger to people and property below. The bullet can still be lethal when it reaches the ground, especially if it lands on a hard surface or hits someone directly.
Additionally, firing a gun in a residential area can be illegal and can result in legal consequences. In general, guns should only be fired in designated shooting ranges or in self-defense situations where there is an immediate threat to life. It is important to handle firearms responsibly and follow all safety guidelines to prevent accidents and injuries.
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in 1.8 hours a sailboat sailed 81 kilometers east across the sea at a constant velocity. what was the sailboats velocity?
Answers
The velocity of the sailboats at sailed a distance of 81 km is 12.5 m/s.
What is velocity?
Velocity is the rate of change of displacement.
To calculate the velocity of the sailboats, we use the formula below.
Formula:
v = d/t................. Equation 1Where:
v = Velocity of the sailboatsd = Distancet = TimeFrom the question,
Given:
d = 81 km = 81000 mt = 1.8 hours = 1.8×60×60 = 6480 sSubstitute these values into equation 1
v = 81000/6480v = 12.5 m/sHence, the velocity is 12.5 m/s.
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One star (star A) has a parallax of 3.4 arc seconds, while a second star (star B) has a parallax of 1.70 arc seconds. What can you correctly conclude?
Choose:
a) Star B must have a larger proper motion than Star A
b) Star A must have a larger proper motion than Star B
c) Star A is closer to Earth than Star B
d) Star B is closer to Earth than Star A
e) Both stars are outside the Milky Way galaxy.
Answers
Based of the distance of each star, we can conclude that Star A must have a larger proper motion than Star B.
The given parameters;
parallax of star A = 3.4 arc secondsparallax of star B = 1.7 arc secondsThe distance of each star form a Parallax is calculated as
\(d = \frac{1}{p}\)
Where;
d is the distance to star, [parsecs]
p is parallax, [arc seconds]
The distance of star A;
\(d = \frac{1}{3.4} = 0.3 \ parsecs\)
The distance of start B;
\(d = \frac{1}{1.7} = 0.6 \ parsecs\)
On average, it is known that a nearby star will have a large proper motion.
Based on the distance of each star calculated above, star A is nearer and it will have a larger proper motion that star B.
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HI PLEASE HELP ON QUESTION ASAP USING AVERAGE (MEAN) TO ANSWER QUESTION! IF UR ANSWER AND EXPLAINATION IS CORRECT ILL RATE YOU FIVE STARS, A THANKS AND MAYBE EVEN BRAINLIEST. PLEASE MAKE SURE YOU ANSWER MY QUESTION USING AVERAGES.
1) a meal for 6 cost £12 per person. as it is one of the diners birthday , the other 5 decided to pay for his meal. how much do each of the five friends need to pay?
Answers
Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.
To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.
In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.
To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.
Total cost covered by the five friends = Total cost - Cost of one person's meal
= (£12 x 6) - £12
= £72 - £12
= £60
Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).
Amount each friend needs to pay = Total cost covered by the five friends / Number of friends
= £60 / 5
= £12
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A beaker is filled with water to the rim. Gently you place a toy duck in the beaker and some of the water spills out. The duck floats. The weight of the beaker with the duck floating in it is Group of answer choices less than its weight before adding the duck. the same as its weight before adding the duck. greater or less than its weight before adding the duck, depending on the weight of the duck. greater than its weight before adding the duck.
Answers
Answer:
Explanation:
The same as its weight before adding the duck
Describe the setup of the electromagnet. Why does the wire need to be a conductive material?
Answers
An electromagnet consists of a conductive wire wrapped around a magnetic core, creating a magnetic field when an electrical current is passed through it.
An electromagnet is a type of magnet that is created by running an electrical current through a wire. The setup of an electromagnet involves a few basic components. First, there must be a wire that is conductive, meaning that it can conduct electricity. This wire is usually wrapped around a core, which is often made of iron, steel, or another magnetic material. When an electrical current is run through the wire, it creates a magnetic field around the wire. This magnetic field then magnetizes the core, creating an even stronger magnetic field. The strength of the electromagnet can be controlled by adjusting the amount of current that is run through the wire. The wire must be a conductive material because it needs to be able to carry the electrical current that creates the magnetic field. If the wire were not conductive, then the electrical current would not be able to flow through it, and the magnetic field would not be created. In summary, the setup of an electromagnet involves a conductive wire wrapped around a magnetic core, which is magnetized by the electrical current running through the wire. The wire must be conductive to carry the electrical current and create the magnetic field.For more questions on electromagnet
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2. The following diagram shows a metal ball and ring apparatus. The ring and ball are both made of brass. At room temperature, the ball is just the right size to pass through the ring. When the ball is heated, it is unable to pass through the ring. Which of the following is NOT true? A The volume of the ball increased. B The mass of the ball increased. C. The speed at which the particles move increased. D The spaces between the particles increased. Not True
Answers
The statement that is NOT true is "the spaces between the particles increased.
option D.
What is effect of temperature on volume?If we consider the solids and liquids, when the temperature increases the molecules gain energy and start moving in all directions. This expands the substance and the volume of the substance increases.
Similar, when the ball is heated, the volume of the ball increases due to thermal expansion.
As the temperature increases, the average kinetic energy of the particles within the ball also increases, causing them to move faster.
However, the spaces between the particles do not necessarily increase. In fact, the expansion of the ball occurs due to the particles themselves moving farther apart, but the intermolecular spacing within the ball remains relatively constant.
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what is projectile motion
Answers
Answer: Motion that follows a curved line.
Explanation: like when you pass the ball to your fellow teammate during basketball it goes in a curved motion through the air because of gravity.
In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 73.5 m/s. The driver of the Thunderbird realizes that she must make a pit stop, and she smoothly slows to a stop over a distance of 250 m. She spends 5.00 s in the pit and then accelerates out, reaching her previous speed of 73.5 m/s after a distance of 400 m. At this point how far has the Thunderbird fallen behind the Mercedes Benz, which has continued at a constant speed
Answers
Answer:
Thunderbird has fallen behind the Mercedes Benz by 1017.49 m
Explanation:
Given the data in question;
initial speed of the ford u1 = 73.5 m/s
distance d1 = 250 m
t1 = 5.00 s
d2 = 400 m
Now, let the time taken to stop be t2 and deceleration is a1
so,
a1 = u1² / (2 × d1)
a1 = (73.5)² / (2 × 250)
a1 = 10.8045 m/s²
Now , for acceleration is a2
a2 = v² / (2 × d2)
a2 = (73.5)² / (2 × 400)
a2 = 6.7528 m/s²
total time spend = 5 + u/a1 + u/a2
total time spend = 5 + (73.5/10.8045) + (73.5/6.7528)
total time spend = 22.687 sec
Now, distance Mercedes is ahead = 22.687 × 73.5 - 400 - 250
= 1667.4945 - 400 - 250
= 1017.49 m
Therefore, Thunderbird has fallen behind the Mercedes Benz by 1017.49 m
A cable exerts a constant upward tension of magnitude 1.38 ✕ 104 N on a 1.20 ✕ 103 kg elevator as it rises through a vertical distance of 2.50 m.
(a)
Find the work done by the tension force on the elevator (in J).
J
(b)
Find the work done by the force of gravity on the elevator (in J).
J
Answers
a) Work done by the tension force is obtained as 3.45 * 10^4 J
b) Work done by gravity is obtained as 2.94 * 10^4 J
What is the work done?In physics, the work done is referred to as the product of the force and the distance that have been covered by the force. We know that the work done by the tension force is the work that is done as the string is stretched across the distance as we have been given.
The work done by gravity is the work that is done as the mass is lifted across a height. Thus the work done is the work done when we lift the mass from one point to another.
In order to find the work done in each case;
a) Work done by the tension force = 1.38 ✕ 10^4 N * 2.50 m
= 3.45 * 10^4 J
b) Work done by the gravity = 1.20 ✕ 10^3 kg * 9.8 m/s^2 * 2.50 m
= 2.94 * 10^4 J
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If the air inside a balloon exerts a force of 1 N on an area of 0.5 m^2 what is the pressure inside the balloon
Answers
Answer:
2 Pascal (Pa)
Explanation:
Pressure is defined as the force acting per unit area. Mathematically, it is expressed as:
Pressure (P) = Force (F) / Area (A)
Given:
Force exerted by the air inside the balloon (F) = 1 N
Area of the balloon (A) = 0.5 m^2
Plugging in the given values into the formula for pressure, we get:
P = F / A
P = 1 N / 0.5 m^2
Using basic arithmetic, we can calculate the pressure inside the balloon:
P = 2 N/m^2
So, the pressure inside the balloon is 2 N/m^2, which is also commonly referred to as 2 Pascal (Pa) since 1 Pascal is equal to 1 N/m^2.
Why is the Falcon 9 rocket so important in today's space exploration world?
It's the first rocket to have been built by robots, saving money for labor costs.
Carbon fiber is used on the outside, making it much more lightweight, requiring less fuel to launch it.
It was invented with the ability to recharge itself by using solar panels.
It's a reusable rocket and has saved money by being reused over 60 times already.
Answers
The Falcon 9 rocket is so important in today's space exploration world because It's a reusable rocket and has saved money by being reused over 60 times already.
option D.
Why is the Falcon 9 rocket so important in today's space exploration world?The Falcon 9 rocket, is developed by SpaceX, and it holds a significant importance in today's space exploration world due to several key features and achievements, and some of the importance include the following;
ReusabilityCost-effectivenessAdvancements in rocket technologyPayload capacity and versatilityInnovation and competitionFrom the given options, we can conclude that the Falcon 9 rocket is so important in today's space exploration world because It's a reusable rocket and has saved money by being reused over 60 times already.
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Predict the order of precipitation of Cl-, CO32-, Br- upon the addition of
AgNO3.
Ksp
AgCl
1.8 x 10- 10
Ag2CO3
8.1 x 10- 12
AgBr
5.0 x 10- 13
Answers
Answer:
I am not understanding your question
PLEASE ANSWER WITH ACTUAL ANSWER AND I WILL MARK BRAINLIEST (IF YOU GIVE ME A SCAMMY ANSWER I WILL REPORT YOU!!!)
A student wants to determine the local value of the gravitational field strength, g , in their classroom. Which of the following experimental set-ups would allow a student to calculate the magnitude of the gravitational field strength using only the quantities measured?
Select TWO answers.
A: Run a lab cart down an inclined plane; measure the length of the ramp and the time it takes the cart to reach the bottom.
B: Hang a known mass from a spring scale; measure the spring scale reading when the mass is at rest.
C: Accelerate a lab cart horizontally; measure the mass of the cart and its acceleration.
D: Drop a heavy metal ball; measure the drop height and the time it takes the ball to hit the ground.
Answers
Answer:
Most likely (B)
Explanation:
B in the passage is the most representative out of all your choices and it has evidence from the passage
Hope dis helps Jit!
Sorry i forgot to type C
B and C both measure mass while the others are calculations and are bias
The following experimental set-ups would allow a student to calculate the magnitude of the gravitational field strength using only the quantities measured:
Hang a known mass from a spring scale; measure the spring scale reading when the mass is at rest.Drop a heavy metal ball; measure the drop height and the time it takes the ball to hit the ground.What is gravitational field?A gravitational field is a model used in physics to explain the effects that a large thing has on the area surrounding it, exerting a force on smaller, less massive bodies.
When a known mass from a spring scale is hung; by e; measuring the spring scale reading when the mass is at rest, the magnitude of the gravitational field strength ( reading/mass) can be calculated.
When a heavy metal ball is dropped, by measuring e the drop height and the time it takes the ball to hit the ground, the magnitude of the gravitational field strength ( h = gt²/2) can be calculated. Hence, option (B) and option (D) is correct.
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If the battery is 4.0V the voltmeter reading across R is 2.0V and the resistance per unit length of wire AX is 2 ohms per metre calculate the current in the circuit when AP is 40.0cm(neglect the internal resistance of the battery)
Answers
The current in the circuit is 2.5 A.
Voltage across the wire AX, V = 4 - 2 = 2V
Resistance per unit length of wire AX, R/l = 2 Ω/m
Length of the wire, l = 0.4 m
Resistance of the wire,
R = R/l x R
R = 2 x 0.4 = 0.8 Ω
According to Ohm's law, the current in the wire AX,
I = V/R
I = 2/0.8
I = 2.5 A
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find the power of a lift that transfers 450 J of energy in 15 seconds.
Answers
Answer: P=30W
Explanation:
formula is p=w/t
p = power
w = work
t = elapsed time
input variables, solve then simplify.
The power of a lift that transfers 450 J of energy in 15 seconds is 30 watts.
Power is defined as the rate of doing work, i.e. the amount of work done per unit time.
Mathematically, it can be represented as follows:
Power = Work done / time taken
Therefore, the power of a lift that transfers 450 J of energy in 15 seconds can be calculated as follows:
Power = Work done / time taken= 450 J / 15 s= 30 W
Therefore, the power of the lift is 30 watts.
To explain further, we know that power is measured in watts (W), and it is the rate at which work is done or energy is transferred.
Here, we are given that the lift transfers 450 J of energy in 15 seconds.
We can find the power of the lift by dividing the amount of work done by the time taken to do it. By substituting the given values, we get the power of the lift as 30 W.
In simple terms, this means that the lift can transfer energy at a rate of 30 joules per second. This can also be interpreted as the lift can do 30 joules of work in one second.
Hence, we can conclude that the power of the lift is 30 watts.
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Ultrasound is:
a
of lower frequency than the human ear can detect.
b
the speed at which the latest, top-secret jet aircraft fly.
c
used to make internal images of the human body.
d
extremely painful to the human ear.
Answers
Answer:
C
Explanation:
not A as those are frequency higher than what human can hear
b is a joke
object P1 and P2 are in a straight line with the normal to a plane mirror.If P1 and P2 are 18m and 21m away from the mirror. Calculate 1)distance between P1 and it's image I1
Answers
The distance between object P1 and its image formed is determined as 36 m.
Distance of the image
The distance of the image formed by object P1 is calculated as follows;
In a plane mirror; object distance = image distance
image distance of P1 = 18 m
distance between object and image = 18m + 18 m = 36 m
Thus, the distance between object P1 and its image formed is determined as 36 m.
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A 20 year old biology student has been working in a nightclub as a DJ to earn money to pay for her education. After several months, she notices that she is having problems hearing high-pitched tones. Which of the following is most probable?
Answers
A 20 year old biology student has been working in a nightclub as a DJ to earn money to pay for her education. After several months, she notices that she is having problems hearing high-pitched tones therefore the following which is most probable is that she is experiencing symptoms of perforated eardrum which is denoted as option A.
What is Ear drum?This is referred to as a thin flap of skin that stretches tight like a drum and vibrates when sound hits it.
It can be damaged when an individual is exposed to constant loud sounds and in this scenario we were told she worked in a nightclub which may be as a result of the loud music and is characterized by hearing loss therefore she has problems hearing high-pitched tones.
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The full question:
A 20 year old biology student has been working in a nightclub as a DJ to earn money to pay for her education. After several months, she notices that she is having problems hearing high-pitched tones. Which of the following is most probable?
A. She is experiencing symptoms from a perforated eardrum. B. She is experiencing symptoms from otitis media. C. She is experiencing symptoms from damage to structures in the inner ear. D. She is experiencing symptoms of otosclerosis. E. What she is experiencing is quite normal and she should not worry about it.
Please help! I'm really desperate.
Could anyone at least give some sketch ideas or advice?
I'm not sure how to set it out..
Answers
Answer:
make a pineapple schematic
Explanation:
Help! Help!
Alcohol abuse has...
A. only physiological aspects.
B. only psychological aspects.
C. physiological and psychological aspects.
Answers
Answer
I feel the answer is C because it could cause mental and physical trauma
Explanation:
Define mixture, heterogeneous, homogeneous, solution, colloid, suspension, solvent, solute, saturation.
Answers
Answer:
1) a substance made by mixing other substances together.
2) diverse in character or content.
3) of the same kind; alike.
4) a means of solving a problem or dealing with a difficult situation.
5) a homogeneous noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
Explanation:
ya
Suppose you are navigating a spacecraft far from other objects. The mass of the spacecraft is 2.0 104 kg (about 20 tons). The rocket engines are shut off, and you're coasting along with a constant velocity of ‹ 0, 28, 0 › km/s. As you pass the location ‹ 4, 4, 0 › km you briefly fire side thruster rockets, so that your spacecraft experiences a net force of ‹ 7.0 105, 0, 0 › N for 21 s. The ejected gases have a mass that is small compared to the mass of the spacecraft. You then continue coasting with the rocket engines turned off. Where are you an hour later? (Think about what approximations or simplifying assumptions you made in your analysis. Also think about the choice of system: what are the surroundings that exert external forces on your system?)
Answers
Answer:
r = <2.640 10⁶, 1.01 10⁸, 0> m
Explanation:
For this exercise we are going to solve it for each direction separately,
we locate a fixed reference frame in space at the height of the rocket, such that the position of the rocket is
r₀ = <4, 4, 0> 10³ m
X axis
the initial velocity of the ship on this axis is v₀ₓ = 0, when it passes through the point x₀ = 4 km it ignites the rockets, experiencing a force of Fₓ = 7.0 10⁵ N for 21 s and the rockets turn off
They ask where it is after one hour t = 1 h = 3600 s
Let's apply Newton's second law
Fₓ = m aₓ
aₓ = Fₓ / m
aₓ = 7.0 10⁵/2 10⁴
aₓ = 3.5 10¹ m / s
Let's use kinematics to find the distance
for the first t₁ = 21 s the movement is accelerated
x₁ = x₀ + v₀ t₁ + ½ aₓ t₁²
x₁ = x₀ + ½ aₓ t₁²
x₁ = 4000 + ½ 35 21² = 4000 + 7717,.5
x₁ = 11717.5 m
this instant has a speed of
vₓ = v₀ₓ + aₓ t
vₓ = aₓ t ₁
vₓ = 35 21
vₓ = 735 m / s
the rest of the time there is no acceleration so it is uniform motion at this speed
t₂ = 3600 - 21
t₂ = 3576 s
vₓ = x₂ / t₂
x₂ = vₓ t₂
x₂ = 735 3576
x₂ = 2,628 10⁶ m
the total distance traveled in this direction is
x_total = x₁ + x₂
x_total = 11717.5 + 2.628 10⁶
x_total = 2,640 10⁶ m
Y axis
on this axis it is in the initial position of y₀ = 4000 m, with an initial velocity of \(v_{oy}\) = 28 10³ m / s and there is no force on this axis F_{y} = 0
The movement in this axis is uniform,
v_{y} = y / t
y = v_{y} t
y = 28 10³/3600
y = 1.01 10⁸ m
the total distance is
y_total = y₀ + y
y_total = 4000 + 1.01 10⁸
y_total = 1.01 10⁸ m
Z axis
the initial position is z₀ = 0, with an initial velocity of v₀ = 0 and in this axis there is no force F_{z} = 0
the movement is uniform
z = 0
the final position of the rocket after 1 h is
r = <2.640 10⁶, 1.01 10⁸, 0> m
A 40kg miniature horse runs west at 8 m/s . What is the force of impact if it hits a fence and comes to a sudden stop in 0.5s?
Answers
Answer:
640 N
Explanation:
Given :
Mass of horse, m = 40kg
initial speed of horse, u = 8 m/s
final speed of horse, v = 0 m/s (because horse comes to a sudden stop)
time taken to stop, t = 0.5 s
recall that acceleration = change in speed / time taken for the change
or
a = (v - u) / t (substituting the above values)
a = (0 - 8) / 0.5
a = -16 m/s² (i.e it is a deceleration of 16 m/s²)
since we are not concerned about the direction of the force, we can simply use the absolute value of acceleration which is a = 16 m/s²
also recall that
Force = mass x acceleration
F = ma (substituting the values above)
F = 40kg x 16 m/s
F = 640 N
Please help me......
Answers
Help Me With This Question Please.
Thank you UwU
Answers
8Ω, 9Ω, xΩ are in series
\( \therefore \: R _{1} = 8 + 9 + x = (17 + x)Ω\)
3Ω and 5Ω are in series
\( \therefore \: R _{2} = 3+ 5 = 8Ω\)
Now equivalent resistance of R1 and R2 which are parallel in R3 = 6Ω
[See The Attachment]
\( \therefore \frac{1}{R _{3}} = \frac{1}{R _{1}} + \frac{1}{R _{2}} \\ \\ \therefore \: \frac{1}{6} = \frac{1}{(17 + x)} + \frac{1}{8} \\ \\ = \frac{1}{17 + x} = \frac{1}{6} - \frac{1}{8} = \frac{1}{24} \\ \\ \therefore17 + x = 24 \\ x = 24 - 17 = 7 \\ x = 7Ω\)
Hope This Helps!!
The value of the resistance X is 7 ohms.
Equivalent resistance in seriesThe equivalent resistance in series is calculated as follows;
R₁ = 8 + 9 + x = 17 + x
R₂ = 3 + 5 = 8
Equivalent resistance in the circuitThe equivalent resistance in the circuit is calculated as follows;
\(\frac{1}{R} = \frac{1}{R_1}+ \frac{1}{R_2} \\\\R = \frac{R_1 R_2}{R_1 + R_2} \\\\\)
\(R(R_1 + R_2 ) = R_1 R_2\)
6(17 + x + 8) = 8(17 + x)
150 + 6x = 136 + 8x
14 = 2x
x = 7
Thus, the value of the resistance X is 7 ohms.
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if it took her 2.7 seconds to lift the lawnmower, how much power did she output
Answers
Answer:
N/A
Explanation:
The following formula can be used to compute the power output of a person lifting a lawnmower:
Work (W) / Time (t) = Power (P).
Where:
Work (W) is defined as the force used to lift the lawnmower multiplied by the distance traveled (i.e., work done against gravity).
Time (t) is the amount of time it takes to lift the lawnmower.
To determine the power output, however, we would need to know the force used to lift the lawnmower as well as the distance it was lifted. We won't be able to provide an accurate power output value without this information.