Kinematics Question 344

Question: A body moves in straight line with velocity $ v _{1} $ , for 1/3rd time and for remaining time with $ v _{2} $ find average velocity.

Options:

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

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

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

D) $ v _{1}+\frac{2v _{2}}{3} $

Show Answer

Answer:

Correct Answer: A

Solution:

$ V _{av}=\frac{v _{1}t/3+v _{2}( 2t/3 )}{t}=\frac{v _{1}}{3}+\frac{2v _{2}}{3} $



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