Asked by Dawn

An escalator is moving downward with a uniform speed of u. A man of mass m is running upward on it at a uniform speed of v. If the height of the escalator is h, the work done by the man in going up the escalator is?
Answered by Anonymous
W=FD where W is work, F is force, and D is displacement. Find F and you will be able to get work.
Answered by venkata reddy
mgh
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