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} $
