4. A dog is chasing a hare at a speed of 17 m/s, the hare is running at a speed of $14 \boldsymbol{m} /$ s. The distance between them before the chase was 150 m. Will the dog catch the hare if there are bushes $520 \mathcal{M}$ from the hare where he can hide?
4. It will not catch up, as the dog can only catch the hare after 50 seconds. In this time, the hare can run 700 m, while the bushes are located 520 m away.