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Differentiation

A block A of ...

Question

A block A of mass m moving with a velocity 'v' along a frictionless horizontal track and blocks of mass m/2 moving with 2v collides with block eastically. Final speed of the block A is:

A

\frac{5 v}{3}

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B

v

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C

\frac{2 v}{3}

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D

None of these

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Solution

The correct option is A $\frac{5 v}{3}$

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