Question

A swimmer swims north across a river that flows at 0.20m/s from west to east. If the speed of the swimmer is 0.15m/s relative to still water, what is the swimmer's velocity relative to the river bank?​

Answer 1

The swimmer's velocity relative to the river bank is 0.35 m/s east.

Step-by-step explanation:

This can be determined by adding the velocities together in the direction of the current. The velocity of the swimmer relative to still water (0.15m/s) and the velocity of the river (0.20m/s) must be added together in the eastward direction, resulting in a total velocity of 0.35m/s east.