Question

The question about the person carrying a bucket of 10n.....in physics

It's answer is..
F.s.cos teta
F.s.90=10.5.0
=0
F.s.costeta=f.s.0=f.s
=10×10=100j

Answer 1

as angle between force F and direction of distance S is 90 so
F.S.Cos theta
as Cos 90=0 so
F.S.90=10.5.0=0 this is right answer