Question

What is amount of work done by a man in pressing a rigid wall with a force of 400 N?

Answer 1

W=Fs
W=400 x 0=0J
Hope this is helpful..

Answer 2

hey

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w= F× displacement

here when the man is pressing the rigid wall due to the high mass of the wall there will be no displacement in the object

so here displacement brmecomes 0

so W = 400N×S

W = 400×0

W=0J

so work done by him is 0

hope helped

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