Speed Race Boat
Speed Race Boat
Physics question. Average speed.?
Two boats start together and race across a 60-km-wide lake and back. Boat A goes across at 60 km/h and returns at 60 km/h. Boat B goes across at 30 km/h and its crew, realizing how far behind it is getting, returns at 90 km/h.
1)Which boat wins and by [...]