A passenger walks east relative to the deck of a ship

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A passenger walks

1.5\,\text{m/s}

east relative to the deck of a ship. An observer on the pier measures the passenger’s velocity as

0.8\,\text{m/s}

east. Determine both the magnitude and direction of the ship’s velocity relative to the pier.