An 69 kg Man runs upstairs and reaches 9m height for 13 s. What is his power? Use g=9.8m/s2

Q: ohn, of mass 82.4 kg can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take…

A: Given data: Mass (m) = 82.4 kg Power (P) = 1.0 hp Height (h) = 12.0 m 1 hp = 746 watts Required:…

Q: A student weighing 551 N climbs at constant speed to the top of an 14 m vertical rope in 17 s. What…

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Q: A 67 kg yak has an average power output of 200 W. How long can a yak climb a 3km high mountain?…

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Q: A force of F = 1.12 x 104 Newtons does work of W = 1.18 x 10° Joules. What is = Work Force)? the…

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Q: A car of mass 1,000 kg moves with a speed of 5.00 m/s. If the car triples its speed to 15.0 m/s then…

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Q: How much power is required to lift a heavy solid concrete beam with mass 91.22 kg upward with a…

A: Given Mass =91.22 kg speed v =3.8 m/s

Q: If you exert a force of 64 N to walk 12 m a flight of stairs in 15 seconds, how much power do you…

A: Given: force F =64 N Distance travelled d = 12 m time taken t =15 sec

Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? O 2 500 J O 1755 J O 3…

A: Write the expression for the work done to raise a barbell. Here, m represents the mass, g…

Q: Q16. A giri weighing 45 kg jumps to a height of (1/2) m at the rate 10 times per minute. The power…

A: Data provided :  Mass (m) = 45 kg Height (H) = 0.5 m The Rate = 10 times per minute

Q: What is the shortest possible time for a forklift with a 2¾ horsepower lifting motor to raise a…

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Q: 4. An 80-lb girl climbs a 12-ft rope in 7.5 s. Her average power output is a. 0.13 hp b. 0.19 hp c.…

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Q: A 2.0-kg potato has been launched out of a potato cannon at 9.0 m/s. What is the kinetic energy? If…

A: mass, m = 2 kg, velocity, v = 9 m/s , height, h = 4 m

Q: A car of mass 1200 kg travels along a horizontal road at a speed of 10 ms'. At the time it begins to…

A: GIVEN THAT    m =  1200 kg      speed = 10 m/s      acceleration = 0.2 m/s2    resistive force = 160…

Q: Football players measure their acceleration by seeing how fast they can sprint 40 yards (37 m). A…

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Q: Using 1000. J of work, a small object is lifted from the ground floor to the third floor of a tall…

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Q: A runner exerts a force of 334 N against the ground while running a distance of 50.Om. The runner's…

A: Force exerted, F = 334 N Distance walked, s = 50 m Power, P = 3.71 kW = 3710 W   Work done by the…

Q: A 710 kg car is moving on level ground at a constant speed of 23 m/s. It is subject to a drag force…

A: Given data:  Force (F) = 500 N Speed (v) = 23 m/s Required: The power (P)

Q: A 56.5-kg person is running and accelerates from 3.67 m/s to 8.29 m/s in 5.67 s. How much power does…

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Q: 11. A ball weighing 20 N is dropped from rest from a height of 8 meters above the ground. Assuming…

A: Total mechanical energy is the sum of kinetic energy and potential energy.

Q: A warehouse worker uses a forklift to raise a crate of pickles on a platform to a height 3.75 m…

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Q: A boy is carrying a bucket of water of mass 3810 grams. If he does 16.5 J of work, to what height…

A: Given data:  Mass (m) = 3810 g = 3.810 kg Work done (W) = 16.5 J Required: Height (h)

Q: A bag of wheat weight 280 kg.To what height should it be raised so that potential energy is 8900 J?…

A: Given data :    Mass of the bag  =  m   Potential energy  =  P•E  Acceleration due to gravity  =…

Q: how much power in watts is required to accelerate a 1200 kg car from rest to 16 m/s in 8 seconds…

A: Solution: Given: m = mass of car = 1200 kg u = initial speed of car = 0 m/s v = final speed of car =…

Q: A (5.00x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given  Mass is m=50 kg Acceleration due to gravity is g=9.80 m/ s^2 Height is h= 5 m  Time taken is…

Q: A 2kg steel sphere is dropped from a height ʼn and, when it hits the ground, its kinetic energy is…

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Q: A force of 200 N displaces a body by 4 m, calculate the work done (in J). A) 40 B) 500 C) 80 D) 800

A: Given Data: The force applied is, F = 200 N. The displacement happened is, s = 4 m. The work is…

Q: A object 2 kg is moving in one dimension with a velocity given by  V(t)= 1 / 2 t^2  at t=4 s.…

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Q: A bullet of weight 160 kg To what height should it be raised so that potential energy is 2250 J?…

A: The potential energy of an object of mass M when it is raised to a height h, U = Mgh

Q: Using 1000. J of work, a small object is lifted from the ground floor to the third floor of a tall…

A: Given parameter                        Work(W) = 1000J                        Time (T) = 20s

Q: To pass a slow-moving truck, you want your fancy 1.30 * 103@kg car to accelerate from 13.4 m>s…

A: Let E1 and E2 denote the initial and final kinetic energy of the car, E denote the change in kinetic…

Q: How much work must you do to push a 11.0 kg block of steel across a steel table (μk=0.6)at a steady…

A: a) The required work done is,

Q: A crane lifts a 268 kg crate a height of 12.4 m in a time of 80.0 s at a constant speed. What is the…

A: Given data:  Mass (m) = 268 kg Height (h) = 12.4 m Time (t) = 80.0 s Required: The power (P)

Q: 4. A horse performs 15,000 J of work pulling a wagon for 20 seconds. What is the horse's power A 750…

A: Power is defined as the ability of a body to do work and is given by, PowerP = Work doneWTime takent…

Q: 1) How much work must one do to pull the block up 13 meters?  The mass is 44 kg.

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Q: 3. A 2.35 x 10" kg car accelerates uniformly from rest to 13.0 m/s in 2.18 s. What is the power…

A: Power is defined as the rate of workdone and the formula is: P=Wt

Q: A 5.0 kg object is moving at 2.29 m/s? By what factor does its kinetic energy change if its speed…

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Q: What is her useful power output if she does 25 pushups in one minute?

A: It is given that,

Q: A 172 g box slides up a 17.3* ramp at a speed of 3.55 m/s. Using conservation of energy and assuming…

A: 12mv2=mgh=mglsinθl=v22gsinθ

Q: A crane raises a 200-newton weight to a height of 50 meters in 5 seconds. The crane does work at the…

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Q: A 1418 kg car can accelerate to 95 km/h in 6.75 s.  What is the average power delivered by the…

A: Given: The mass of the car is 1418 kg. The velocity of the car is 95 km/h. The time taken is 6.75 s.…

Q: What is the power output for a 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s,…

A: The mass of the woman is m=60 kg. The height is h=3 m. The time is t=3.50 s. The final speed is vf=2…

Q: A2 kg Physics book is held 1.5 m above the floor for 75 s. The work done is 30 J OJ 980 J 100 J

A: Work done by any force is the product of force and the displacement occur.  W=F.d  Where F is the…

Q: A woman uses a pulley and a rope to raise a 20 kg weight to a height of 2 m. If it takes 4 s to do…

A: mass, m = 20 kg  height, h = 2 m  time, t = 4s  The formula for energy is  E = m g h  The power is…

Q: How far must you stretch a spring with k = 1700 N/m to store 230 J of energy? Express your answer in…

A: Data Given ,  Potential energy of spring ( P.E ) = 230 J k = 1700 N/m We know that ,  Potential…

Q: A 13 kg ball is dropped from a height of 14 m?  As it falls, air drag does -50 J of work against the…

A: Given Data: The mass of a ball is, m=13 kg The height of fall is, h=14 m The work against the ball…

Q: How much work (in J) is required to move a box that weighs 18 kg upward by 35 cm? Use the fact that…

A: Given, Mass  of the box m = 18 Kg Upward distance h = 35 cm = 0.35 m Acceleration due to gravity g =…