Boat 1 Goes Directly Across a Stream a Distance L

Question 4
Multiple Choice

Boat 1 goes directly across a stream a distance L and back taking a time t1.Boat 2 goes down stream a distance L and back taking a time t2.If both boats had the same speed relative to the water,which of the following statements is true? A)t2 > t1 B)t2 < t1 C)t2 = t1 D)t2 = 2t1 E)t2 = 0.5t1