Boy + bus

1. Aug 25, 2004

7bear

A boy travels by bus. When it goes up a mountain, does the boy inside the bus gain in P.E.? Vice versa, does he loss in P.E. when the bus goes down?

2. Aug 25, 2004

jcsd

Yes he gains G.P.E. as we can simply think of his G.P.E. as a function of his distance from the centre of the Earth.

3. Aug 25, 2004

$$P_e = mgh$$