Question

A sled and rider with a combined weight of 62.8 kg are at rest on the top of a hill 13.8m high. Assuming there is no friction, what would the total energy be on sliding halfway down the hill?

Answer 1

8490 J

Step-by-step explanation:

Potential energy at the top of the hill:

PE = mgh

PE = (62.8 kg) (9.8 m/s²) (13.8 m)

PE = 8490 J

Since no work is done by friction, the total energy at any point on the hill is 8490 J.