A man at point A directs his rowboat due north toward point B, straight across a river of width 100 m. The river current is due east. The man starts across, rowing steadily at 0.75 m/s and reaches the other side of the river at point C, 150 m downstream from his starting point.
-What is the speed of the river?
A)0.38 m/s
B)0.67 m/s
C)1.1 m/s
D)6.7 m/s
E)7.5 m/s

Question

A man at point A directs his rowboat due north toward point B, straight across a river of width 100 m. The river current is due east. The man starts across, rowing steadily at 0.75 m/s and reaches the other side of the river at point C, 150 m downstream from his starting point. 
-What is the speed of the river?
A)0.38 m/s 
B)0.67 m/s 
C)1.1 m/s 
D)6.7 m/s 
E)7.5 m/s

Quizplus · Accepted Answer

The Answer of A man at point A directs his rowboat due north toward point B, straight across a river of width 100 m. The river current is due east. The man starts across, rowing steadily at 0.75 m/s and reaches the other side of the river at point C, 150 m downstream from his starting point. 
-What is the speed of the river?
A)0.38 m/s 
B)0.67 m/s 
C)1.1 m/s 
D)6.7 m/s 
E)7.5 m/s

A Man at Point a Directs His Rowboat Due North