Question

Give an example when no work is done in spite of body getting displaced

Answer 1

Hello buddy!!

When the body even gets displaced when we work on a perpendicular wall or surface work done is 0

Fir example,

When we press the heavy wall, there does come dy/dx change in our movement of hands but there is 0 change in the movement of the wall,this tells that the work done is 0

Also,

When a pully men gets the work weight from one place to another work is applied in perpendicular force in its head so w=fs.costheta and in pie by 2 it will be 0.

So the work done according to the physics is 0.

Hope this would be helping you the best!

Thanks.!!