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Two particles each of mass m are revolvi...

Two particles each of mass m are revolving in circular orbits of radius `r=5R` in opposite directions with orbital speed `v_(0)` . They collide perfectly inelastically and fall to the ground. The speed of combined mass on triking the ground will be

A

`2sqrt(2)v_(0)`

B

`sqrt(2)v_(0)`

C

`2v_(0)`

D

`v_(0)`

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The correct Answer is:
A
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