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A massive ball moving with speed v collides head on with another stationary ball having mass very much smaller than the mass of the first ball. The collision is elastic. Then immediately after the impact, the second ball will move with a speed approximately equal to

a
v
b
2v
c
v/3
d
Infinite

detailed solution

Correct option is B

v2 = 2u1 - u2  ⇒ v2 = 2vMV1 +m V2 = MV + m x o - - - - - - - - - (1)Again , V2 - V1  = eV = V - - - - - - - - - - - (2)Eliminating V1 from above equations, we getV2 = 2MV / M + m = 2V / (1 + m/M)Since m <

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