Question

A force ! F = 5ˆ i + 6ˆ j − 4ˆ k acting on a body, produces a displacement ! S = 6 ! I + 5 ! K. Work done by the force is

Answer 1

I don't understand what you write...but I can tell you how to do it....first of all work is scalar quantity so we know....work(w)=force*displacement.....,w=f*s so the work is scalar so here we can use the dot product method if we know the angels between the vector the law is....w=f*s*cosθ
I think now you can solve the answer