Answer to Question #177059 in Physics for Andu

Question #177059

1. Find the work done by the force of gravity when the sphere of mass m: a) falls from a height h. b) rises to a height h; c) rolls in a horizontal plane.

Expert's answer

(a)

"W_g=Fh=mgh."

(b)

"W_g=Fh=mgh."

(c)

"W_g=0."

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