A particle of mass m1 hits another particle of mass m2 at rest with a velocity u . The collision is head-on and elastic. If m1 >> m2 , then after collision, the velocity of m2 will be-

A particle of mass m1 hits another particle of mass m2 at rest with a

1.	A particle of mass m1 hits another particle of mass m2 at rest with a velocity u . The collision is head-on and elastic. If m1 >> m2 , then after collision, the velocity of m2 will be-
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A particle of mass m1 hits another particle of mass m2 at rest with a velocity u . The collision is head-on and elastic. If m1 >> m2 , then after collision, the velocity of m2 will be-

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