A boat that can travel at 4.0 km/h in still water crosses a river with a current of 2.0 km/h. At what angle must the boat be pointed upstream (that is, relative to its actual path) to go straight across the river?
A)27°
B)30°
C)60°
D)63°
E)90°

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The Answer of A boat that can travel at 4.0 km/h in still water crosses a river with a current of 2.0 km/h. At what angle must the boat be pointed upstream (that is, relative to its actual path) to go straight across the river?
A)27°
B)30°
C)60°
D)63°
E)90°

A Boat That Can Travel at 4