4.1 Exercise 7

The 18th hole at Pebble Beach Golf Course is a dogleg to the left of length 496.0 m. The fairway off the tee is taken to be the x direction. A golfer hits his tee shot a distance of 300.0 m, corresponding to a displacement $\Delta \overset{\rightarrow}{r}_{1} = 300.0 \text{m} \hat{i} ,$ and hits his second shot 189.0 m with a displacement $\Delta \overset{\rightarrow}{r}_{2} = 172.0 \text{m} \hat{i} + 80.3 \text{m} \hat{j} .$ What is the final displacement of the golf ball from where it started?