chapter four question

Question

A sled and rider with a combined weight of 74.0 kg are at rest on the top of a hill 30.0 m high. (Enter your answers in J.)

(a)

What is their total energy at the top of the hill?

 J

(b)

Assuming there is no friction, what would the total energy be on sliding halfway down the hill?

 J

(c)

What would the total energy be at the bottom of the hill?

 J

Answer 1

Hello Yvette K.,

Wyzant Ask-an-Expert is not a spreadsheet for solving your homework set. That's 7 problems at once on the same skill set, using physics equations for forces, energies, masses, momenta, and so on. That's spamming. Please limit yourself to a single problem, get the technique from the answer, and apply it yourself from there on. If you are totally at sea on applying equations to problems, please find some one-on-one tutoring; Wyzant makes that possible, or perhaps your peers, family, friends, etc..

-- Cheers, -- Mr. d.