Physics

Problem

A block is pulled on a smooth horizontal floor by a constant force of

30\,\text{N}

directed due east. The block is moved sequentially along three straight segments:

5\,\text{m}

east,

5\,\text{m}

north, and

5\,\text{m}

west. What is the total work done by the force over the entire journey? a)

300\,\text{J}

0\,\text{J}

450\,\text{J}

150\,\text{J}