Question

 The work done is zero if the angle between the force acting on a body and the displacement of the body is ...0°, 90°, 180°, 60°​

Answer 1

Answer:

If the work done is zero, then the angle between the force and displacement is 90. Work is a scalar quantity, i.e., it only has magnitude and no direction.

Answer 2

Answer:

90

Explanation:

as , W = FxS cos(a) , where (a) is the angle btw

Force and displacement.

when a = 90

then Cos a = 0

then, w = F xS x0 = 0

thanks!