Physics

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}

8.9\,\text{m/s}

13\,\text{m/s}

10\,\text{m/s}