Question

A person who weighs 50 N climbs 100 stairs up. Each stair is 0.2 m high. The work done is

Answer 1

Step-by-step explanation:

Given that ,

A man who weights is 50N climbs up 100 steps of a stair

each step is 0.2m high

mg=50N

Height at 100 steps , h=100×0.2=50 m

Change in potential energy , =mgh=50×50=2500 J

So, Work done by the man , W=2500 J