10.3. Two ships are sailing on the sea on perpendicular courses such that both are to pass through a fixed point 0 (each at its own time. After passing point 0, the ships, without stopping, will continue their straight-line motion). The speeds of the ships are the same and constant. At noon, the ships had not yet passed point 0 and were 20 km and 15 km away from it, respectively. Will the ships at any later time be within sight of each other if the visibility on that day is 4 km
10.3. Two ships are sailing on the sea along perpendicular courses such that both are to pass through a fixed point 0 (each at its own time. After passing point 0, the ships, without stopping, will continue their straight-line motion). The speeds of the ships are the same and constant. At noon, the ships have not yet passed point 0 and were 20 km and 15 km away from it, respectively. Will the ships at some point be within sight of each other if the visibility on that day is 4 km?

Answer: yes, they will. Hint See problem 9.4.