Question

Question 3
In case of negative work in the angle between the force and displacement is

(a) $0^{\circ }$
(b) ${45}^{\circ }$
(c) ${90}^{\circ }$
(d) ${180}^{\circ }$

Answer 1

(d) ${180}^{\circ }$

Force and displacement should be in the opposite direction to each other for negative work done.