ST2.18 Relative Velocities (4)
A boy rows across a river
100 m wide. He rows so that the bows of the boat are always at right angles to the flow.
His speed with respect to the water is
0.4 ms-1; the river is flowing at
0.3 ms-1.
What is the location (with respect to his starting point)
of the point at which he reaches the far bank?