A block initially at rest is pushed along a smooth horizontal surface

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

Problem

2\,\text{kg}

block initially at rest is pushed along a smooth horizontal surface. After the block has moved

10\,\text{J}

of net work has been done on it. Calculate the final speed of the block. (a)

4.5\,\text{m\,s}^{-1}

(b)

2.2\,\text{m\,s}^{-1}

(c)

3.2\,\text{m\,s}^{-1}

(d)

5.0\,\text{m\,s}^{-1}