Question

give reason a boy with his heavy bag waiting at the bus stop does no work.​

Answer 1

Answer:

there can be two reasons

Explanation:

1. As he is at rest thus distance covered is zero therefore when u put 0 in the equation W=FS u will get zero as the answer.

2. If we assume that he did move down distance we say that the direction of Distance is horizontal whereas the force of gravity acting on the boy and the bag in the downward direction makes an angle of 90° with displacement and as we know that cos90 is equal to zero thus according to equation W =FScos O