What happens to the work done when the displacement of a body is at right angles to the direction of force acting of it? Explain your answer.
Work done is zero in this case, since there is no displacement in the direction of force. Or in other words we can explain it as,
We know,
W = F s cos θ,
Where W = work done,
F = force,
s = displacement,
θ = angle between force and distance
When force is perpendicular to the direction of motion, Cos 90°=0,hence the work done is zero.