Which of the following expressions correctly gives the work done when a constant…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Which of the following expressions correctly gives the work done

W

when a constant force

F

produces a displacement

s

along its own direction? (a)

W = \dfrac{1}{2} F s

(b)

W = F s \cos 90^{\circ}

(c)

W = F s

(d)

W = - F s