A dog moves west and then north from its kennel

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A dog moves

9\,\text{m}

west and then

12\,\text{m}

north from its kennel. What is the magnitude of its displacement from the starting point? (a)

10.5\,\text{m}

(b)

8\,\text{m}

(c)

15\,\text{m}

(d)

21\,\text{m}