Posted by Chelsea on Saturday, September 12, 2009 at 5:26pm.
Suppose that the river was moving with a velocity of 3 m/s, North and the motor boat is moving with a velocity of 4 m/s, East. If the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore? What distance downstream does the boat reach the opposite shore?

Math  MathMate, Saturday, September 12, 2009 at 6:18pm
How long does it take the boat to cross the river of 80 m. wide at 4 m/s?
During this time, how far would the boat be carried downstream at 3 m/s?