Physics

Problem

A constant horizontal force of

4.0\,\text{N}

acts on a cart of mass

250\,\text{g}

for

3.0\,\text{s}

. The cart was already moving in the same direction with a velocity of

2.0\,\text{m/s}

when the force began to act. Determine the velocity of the cart at the end of the

3.0\,\text{s}

interval.