A scooter experiences a constant resistive force of while travelling at

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

Problem

A scooter experiences a constant resistive force of

200\,\text{N}

while travelling at

36\,\text{km\,h}^{-1}

. Determine the power needed to keep it moving at this speed. (a)

720\,\text{W}

(b)

20\,\text{W}

(c)

2000\,\text{W}

(d)

7200\,\text{W}