Identify the correct expression for power when a constant force moves a body with…

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

Problem

Identify the correct expression for power

P

when a constant force

F

moves a body with uniform velocity

v

. (a)

P = 2 F v

(b)

P = F v

(c)

P = \dfrac{1}{2}\,F v

(d)

P = F v \cos 30^{\circ}