A child pulls a sled up a snow-covered hill. In the process, the child does 550 J of work on the sled. If she walks a distance of 25 m up the hill, how large a force does she exert on the sled? You must exert a force of 12 N on a book to slide it across a table. If you do 7 J of work in the process, how far have you moved the book? How much time is needed to produce 4350 Joules of work if 875 watts of power is used?

If the force required to move a house horizontally a distance of 40 m is 3950 N, how much work has been done on the house?

A person weighing 450 N gets on an elevator. The elevator lifts the person 7 m in 3 seconds. How much power was used?

If 75 W of power is produced in 11 seconds, how much work is done?
The potential energy of an apple is 6.5 Joules. The apple is 9m high. What is the mass of the apple?

You serve a volleyball with a mass of 1.8 kg. The ball leaves your hand at 27 m/s. Find the kinetic energy.

A 82 kg refrigerator is located on the 70th floor of a skyscraper (305m above ground). What is the potential energy of the refrigerator?

What is the velocity of a 550 kg elevator that has 4250 J of energy?
At what height is an object that has a mass of 43 kg, if its gravitational potential energy is 13750 J?

Explain to me how the roller coaster adds energy to get into the ride. Then explain what happens with the total energy of the roller coaster. (Assume there is no friction).
Tell me about kinetic, potential and all the energy.

Tell me 5 different types of energy.