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A person is standing on a escalator whic...

A person is standing on a escalator which is moving up uniformly. Find out work done by the normal force acting on the man due to the cscalator while his mass is m and he gains height h due to movement of the escalator.

A

zero

B

mgh

C

`-mgh`

D

`(mgh)/(3)`

Text Solution

Verified by Experts

`W=N s cos theta`
=mg
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