State the correct expression for instantaneous power when a constant force acts on a…

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

Problem

State the correct expression for instantaneous power when a constant force

\mathbf{F}

acts on a body moving with velocity

\mathbf{v}

along the same straight line. (a)

P = \dfrac{1}{2}Fv

(b)

P = Fv

(c)

P = Fv\sin\theta

(d)

P = 2Fv