Question

A motorized boat leaves a dock with a velocity relative to the river of 3.24m/s in the positive direction of x (parallel to the shore). At the same time, a person by the shore starts running with a relative velocity to the shore at 1.02m/s in the positive direction of x. The velocity of the river current is of 1.03m/s in the direction negative of x. Determine the relative velocity of the boat (in m/s) with regard to the person (as seen by the runner).

Answer 1

the boat is going 3.24 - 1.03 = 2.21 m/s in x direction
the person is going 1.02 m/s in x direction
the runner sees the boat pulling ahead (+x) at 2.21 - 1.02 meters/sec