Question

A boat heads due south directly across a river at 30 ft/min. The river is flowing east at 20
ft/min. Find the resultant speed of the boat.
(a) 36.1 ft/min(b) 22.4 ft/min
(c) 40 ft/min. (d) 24 ft/min​

Answer 1

Answer:

The speed is increasing slowly because the speed of river is not in opposite direction. So I think the answer is a) 36.1ft/min.