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A particle mass m is revolving around a ...

A particle mass m is revolving around a planet in a circular orbit of radius R. A the instant the particle have velocity `overset( 1) ( V)`, another particle of mass `( m )/( 4)` collides perfectly inelastically with the first particle. If the combine body - wasfound to follow elliptical path with velocity `( 5 overset( 1)( V))/( 8)` then the velocity of second particle just before collision is `:` `( | overset( 1)( V) | = V)`

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