A frictionless incline has a length of 5 meters and a height of 9.55 meters.  How much work must be done to move a 50N box from the bottom to the top of the incline?

A golfer hit a 40.71 gram golf ball from the fairway giving it an initial velocity of 37.3 m/s.  It lands on the green, which is at the same elevation as the fairway, and strikes the ground with a final velocity of 16.1 m/s.  What is the work (in J) done on the ball by the non-conservative friction forces

A man pulls a 4.6-kg sled 50 meters along an angled hill with a force of 36 N, which elevates the man 28 meters above the bottom of the hill. The man then hops on his sled and slides from rest to the bottom of the hill back along his 50 meter path, during which a 299 N frictional force acts upon his sled. How much work in Joules does the man do against friction in pulling the sled up the hill?

the kinetic energy of a car is 7 x 10^6 J AS IT TRAVELS along a horizontal road. How much work is required to stop the car in 15s?

A 2,000-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 3.00 m before coming into contact with the top of the beam, and it drives the beam 14.6 cm farther into the ground as it comes to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest.

A basketball playet makes a jump shot. The 0.600 kg ball is released at a height of 2.08m above the floor with a speeed of 7.31 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.03 m/s. What is the work done by the ball by air resistance, a nonconservative force  ?

The figure below shows a 1.60 ✕ 104-N car rolling down a ramp inclined at an angle of θ = 25.5° above the horizon. The car rolls a distance of 12.5 m.   Determine the work Wg that the force of gravity does on the car.

A shopper pushes a grocery cart 39.25 m  on level ground, against a 37.06 N frictional force. The cart has a mass of 19.79 kg.  He pushes in a direction 24.67º below the horizontal. If the initial velocity was 1.78 m/s, and final speed was 16.88 m/2. What is the work done by the pushing force in unit of Joule?

A 2.0-kg particle moving along the x-axis is acted upon by the force that varies with position as shown below. The speed of the particle at x = 0 is v = 6.0 m/s. Find the work done by the force from x = 0 to x = 4.0 m, and particle’s speed at x = 4.0 m.

Timothy weighs 515 N. he runs up a 16.5m tall building and jumps off. When he reaches the ground, he is travelling at 16.4 m/s. What is the work done by air resistance? Use formulas mgh and 1/2m(vf^2) - 1/2m(vi^2) if possible.