question_answer

A particle moves in straight line with velocity\[{{v}_{1}}\], and\[{{v}_{2}}\] for time intervals which are in ratio 1:2. Find average velocity.

A)  \[\frac{{{v}_{1}}}{3}+\frac{2{{v}_{2}}}{3}\]            

B) \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\]

C) \[\frac{2{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\]             

D) \[{{v}_{1}}+\frac{2vl2}{3}\]