A student does of work in while pulling a cart

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

Problem

A student does

2400\,\text{J}

of work in

12\,\text{s}

while pulling a cart. Calculate the average power developed. (a)

400\,\text{W}

(b)

50\,\text{W}

(c)

200\,\text{W}

(d)

20\,\text{W}