A man wighing 80 kg wt carrice a stone of weight 20kg wt to the top a builling 30 m
Channel: Doubtnut
Date: 2020-08-30

A man wighing 80 kg wt carrice a stone of weight 20kg wt to the top a builling 30 m high .Calculatethe work done by him .Take `g=9.8 ms^(-2)`