- #1
sarthak sharma
- 35
- 0
Homework Statement
an escalator is moving downwards with uniform speed u and a man of mass m is running upwards on it with uniform speed v. if height of escalator is h find the work done by man in going up the escalator
Homework Equations
The Attempt at a Solution
on my first shot at this question i thought that it should be mgh which is the change in his potential energy
but now i think that it should be wrong because he also has to do work against the motion of escalator.
i tried my best but could not solve it and also i can't understand the solution to it in my book...so i have attached a file for the same
i would be glad if someone can help me out at this