A boat travels upstream (west)

PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A boat travels

54\,\text{km/h}

upstream (west). A swimmer in the boat dives into the water and immediately starts swimming

2.5\,\text{m/s}

east relative to the boat. Calculate the swimmer’s speed relative to the riverbank in

\text{km/h}

, indicating direction.