Question

A body moves in straight line with velocity v1 for 1/3rd time and for remaining time with v2 . Find average velocity.

(a) v1/3 + 2v2/3

(b) v1/3 + v2/3

(c) 2v1/3 + v2/3

(d) v1 + 2v2/3

Answer 1

Correct option (a) v1/3 + 2v2/3

Explanation:

(a) vav = (v1t/3 + v2(2t/3))/t = v1/3 + 2v2/3