A particle moves `3 m` north , then `4 m` east and finally ` 6m` south . Calculate the distance travelled and the displacement.

Options

A. 13 m
B. 15 m
C. 17 m
D. 20 m

Answer

A

Explanation

Let us consider, the particle starts from O and moves 3 m north ( = OA) , 4 m east (- AB) and 6 m south (= BC) as shown in figure
`:.` Distance travelled = OA + AB + BC = 3 + 4 + 6 = 13 m