Question

An escalator is moving downwards with a uniform speed 'u'. A man of mass 'm' is running upwards on it with a uniform speed 'v'. If the height of the escalator is 'h' the work done by the man in going up the escalator if

Answer 1

Answer:

mghv/(v+u)

Explanation:

if there's any mistake just tell me but i think the process is correct