Physics, asked by shauryashivani7739, 1 year ago

Calculate the work done when F=(2i^+j^+4k^)N and S=3i^+4j^+4k^

Answers

Answered by abiramiragu
0

Hey


Hope this helps.........

Brainiest answer please....


first try to Understand when work is said to be done.


By defination,"Work is said to be done if a body has some net displacement in the direction of applied force."


so, work done=component of force in the direction of displacement X displacement.


Therefore,W=(Fcosϴ X d)=F.d


By dot product rule,i.i=j.j=k.k=1 and i.j=j.k=k.i=0


F.d = (2)(1) +(3)(2) + (1)(-4)


=2 +6 -4 =4


Therefore,required work done is 4

Similar questions