Question

a motorboat traveling 5m/s, EAST encounters a current traveling 2.5m/s North, in what direction should a boat travel so to land directlyat the opposite side of the riverbank?
I assume East is straight across.
boat propulsion speed = 5 in direction X degrees south of East
5 sin X = 2.5
sin X = 2.5 / 5 = 0.50
X = 30 degrees South of East

by the way East speed made good across = 5 cos 30

Related Questions

On a safari, a team of naturalists sets out toward a research station located 6.3 km away in a direc... A motorboat is traveling 5m/s East, and encounters a current traveling 2.5m/s, North. If the witdth... An airplane traveling at 200 mph in a direction of 40 degrees north of east encounters a wind blowin...