A BOAT MOVES RELATIVE TO WATER AT A VELOCITY WHICH IS N TIMES THE RIVER FLOW VELOCITY.AT AN ANGLE TO THE STREAM DIRECTION MUST BE BOAT MOVE TO MINIMISE DRIFTING?
A BOAT MOVES RELATIVE TO WATER AT A VELOCITY WHICH IS N TIMES THE RIVER FLOW VELOCITY.AT AN ANGLE TO THE STREAM DIRECTION MUST BE BOAT MOVE TO MINIMISE DRIFTING?