I've tried this problem but I don't seem to be getting anywhere. At 1:00 pm ship A is 30 miles due south of ship B and sailing north at 15 mi/hr. If ship B is sailing west at a rate of 10 mi/hr, find the time in which the distance d between the ships is minimal.I would just like to get clues on how to start it, but don't solve it for me.Thanks.