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Relation between Linear and Angular Speed

A particle mo...

Question

A particle moves from P to Q with a uniform velocity $v_{1}$ and Q to P with a velocity of $v_{2}$ . If it moves along a straight line between P and Q then its average velocity will be ____.

A

\frac{{2 v}_{1} v_{2}}{v_{1} + v_{2}}

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B

\frac{v_{1} v_{2}}{2}

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C

\frac{{2 v}_{1} {+ v}_{2}}{2}

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D

zero

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Solution

The correct option is D zero
Average Velocity $= \frac{T o t a l D i s p l a c e m e n t}{T o t a l t i m e t a k e n}$ .

In this case, total displacement is equal to zero
Hence Average velocity $= 0$

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