a hydraulic catapult propels the car to the top of the ride, at a height of 450 ft. If the car and its occupants weigh 1200 lb, (a) what would be the potential energy at the top of the ride?

The top of a descending ski slope is 50 m higher than the bottom of the slope. A 60-kg skier starts from rest and skis straight to the bottom of the slope. If 20% of the gravitational potential energy change of the skier  is converted into internal energy (due to friction and air drag), how fast is the 60-kg skier traveling at the bottom of the slope? Again, represent the process with work-energy bar charts indicating the system, the initial state, and the final state.

How much potential energy due to gravity would a person have if he is standing on top of the building that is 1000 cm high? Assume that he has a mass of 50 kg.

How much potential energy does a person of mass 82kg have if they are standing at the top of a building that is 59.6 m high? sumbit your answer is exponential form.

How much potential energy does a person of mass 92 kg have if they are standing at the top of a building that is 56.2 m high? Submit your answer in exponential form.

"20 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just before hitting the ground. What change occurs in the gravitational potential energy of the bear Earth system during the slide?"

A cart is loaded with a brick and pulled at constant speed along an inclined plane to the height of a seat-top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, what is the potential energy of the loaded cart at the height of the seat top?  Referring to the previous item, what will happen to the potential energy of the cart if its mass increases four times?

A 20 N ball is thrown upward with an initial  kinetic energy of 100 J. How much gravitational potential energy will the ball have when it reaches the top of its path?   2000 J 100 J 50 J 5 J   Which is correct?

How much potential energy does a person of mass 54 kg have if they are standing at the top of a building that is 60.3 m high? Submit your answer in exponential form.

A box with a mass of 7.0kg is lifted very slowly (with essentially zero acceleration), though a height of 1.5m, in order to place it upon the shelf of a closet. What is the increase in potential energy of the box? How much work was required to lift the box to this position?