Halliday, Resnick & Walker — Kinetic Energy and Work: Problem 8

8 An ice block floating in a river is pushed through a displacement $\vec{d} = (20\text{ m})\hat{i} - (16\text{ m})\hat{j}$ along a straight embankment by rushing water, which exerts a force $\vec{F} = (210\text{ N})\hat{i} - (150\text{ N})\hat{j}$ on the block. How much work does the force do on the block during the displacement?