An electric winch delivers a constant power of to accelerate a crate that starts from…

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

Problem

An electric winch delivers a constant power of

500\,\text{W}

to accelerate a

50\,\text{kg}

crate that starts from rest on a horizontal, frictionless surface. What is the speed of the crate after

8.0\,\text{s}

? (a)

6.3\,\text{m/s}

(b)

8.9\,\text{m/s}

(c)

13\,\text{m/s}

(d)

10\,\text{m/s}