Physics

Problem

A sled is pulled

20\,\text{m}

along level snow by a rope that exerts a constant

50\,\text{N}

force directed

30^{\circ}

above the horizontal. Determine the work done on the sled by the rope. a)

5.0\times10^{2}\,\text{J}

1.0\times10^{3}\,\text{J}

8.7\times10^{2}\,\text{J}

-8.7\times10^{2}\,\text{J}