A top fuel dragster with a mass of 500.0 kg starts from rest and completes a quarter mile (402 m) race in a time of 5.0 s. The dragster's final speed is 130 m/s. Neglecting friction, what average power was needed to produce this final speed? Note: 1hp =746 Watts.

Q: As part of a charity fund raising drive, a runner with mass 50.0 kg runs up the stairs to the top of…

A: Mass of the runner=50kgHeight=443macceleartion due gravity=g=9.8m/s2Increase in potential…

Q: Starting a race, a 68.2-kg sprinter runs the first 7.04 m in 1.60 s, starting from rest and…

A: Given: The mass (m) of the sprinter is 68.2 Kg. The distance (S) covered by the sprinter is 7.04 m.…

Q: A cart is loaded with a rock and pulled at constant speed along an inclined plane to the height of a…

A:

Q: 3An elevator lifts a load of mass 10 kg a distance of 50m in 14 s. Find the work done and the power…

A: Given Data : The mass that the elevator lifts is given as m = 10 Kg. The height by which the load is…

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: A drone of mass 1.4 kg is flying across the sky 64 m above ground at the speed of 19 m/s   I fyou…

A:

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: A 520-kg dragster accelerates from rest to a final speed of 105 m/s in 390 m, during which it…

A:

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: A 450 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a…

A: mass of dragster = 450 kg Initial velocity = 0 m/s final velocity = 120 m/s distance moved = 400 m…

Q: A cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power…

A:

Q: A 600.0-g box has an acceleration of 5.0 m/s? when it is pulled by a horizontal force across a…

A: Work done is given by:

Q: It takes 157 kJ of work to accelerate a car from 23.4 m/s to 27.3 m/s. What is the car's mass?

A: Given, Work done, W=157 kJ Initial velocity, u=23.4 m/s Final velocity, v=27.3 m/s

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…

A:

Q: A 5.0-kg cart is moving horizontally at 4.0 m/s. In order to change its speed to 6.0 m/s, the net…

A: Given: Mass of cart m=5.0 kg Initial speed u=4.0 m/s Final speed v=6.0 m/s To find net work done in…

Q: For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at…

A: Given: The weight is 400 N. The height lifted by athelet is 2.2 m. The time interval is 1.6 s.

Q: Without pedaling, the rider rides down a 3.0% slope with constant speed of 7.0 m/s. With how much…

A: Slope = 3% therefore, θ = Tan-1(0.03) = 1.718oV = 7 msmass (m) = 80 kg

Q: A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The…

A:

Q: A stone with a mass of 2.40 kg is moving with velocity (5.20î – 1.80ĵ) m/s. (HINT: v2 : () What is…

A:

Q: A car of mass 1500 Kg can accelerate from rest to a speed of 20 m/s in a time of 10 sec. Ignoring…

A: solution is given as

Q: A bird of mass m = 2kg flies at a height h = 10 m from the ground with a constant horizontal speed v…

A: The mass of the bird, m=2 kg   The height, h=10 m   The horizontal speed, v=10 m/s

Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…

A:

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

Q: A cart is loaded with a rock and pulled at constant speed along an inclined plane to the height of a…

A:

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 horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass…

A: Given data : Force=F Mass=m time=t Velocity=V   TO FIND : Work done

Q: A belicopter with mass m 3250 kg is cruising at a speed of 56.9 m/s at an altitude of 185 m. What is…

A:

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: What is the kinetic energy of a 12 000 kg truck moving at a speed of 25 m/s? Select one: a. 3.8 x…

A: We know Kinetic energy is given by : K.E.=12mv2 And Given : m=12000 Kg v =25 m/s

Q: A truck has a gross weight of 1.0 x 106 N. Assuming that the concrete road has a coefficient of…

A:

Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

A: Let Pout be the total power output of the engines, P is the power used to push the ship through the…

Q: 50.0kg marathon runner runs up the stairs to the top of a 443m tall tower. To lift herself to the…

A:

Q: "A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At…

A:

Q: A small motor runs a lift that raises a load of bricks weighing836 N to a height of 10.7 m in 23.2…

A:

Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

A:

Q: A farmer uses a tractor to pull a 110 kg bale of hay up a 15∘ incline to the barn at a steady 5.0…

A: The components of weight into the perpendicular and parallel to the slope are Fparallel=mgsinθ=110…

Q: 12. A person runs up a long flight of stairs in 10 seconds. If the person’s weight is 600 N and the…

A: Given data The time taken by the person is t = 10 s. The person weight is W = 600 N. The vertical…

Q: The kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 286 kg, what is…

A: The kinetic energy of an object of mass 'm' and moving with a speed v is given as:K.E=12mv2 It is…

Q: A 700 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a…

A:

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

A:

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

A: