A motor delivers constant power of for to accelerate a cart that starts from rest on…

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

A motor delivers constant power of

200\,\text{W}

for

5\,\text{s}

to accelerate a

10\,\text{kg}

cart that starts from rest on a smooth track. What is the speed of the cart at the end of

5\,\text{s}

? (a)

20\,\text{m/s}

(b)

14\,\text{m/s}

(c)

28\,\text{m/s}

(d)

10\,\text{m/s}