1.

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. \[{{v}_{1}}+\frac{2vl2}{3}\]
Answer» B. \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\]


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