Work, Energy and Power

Question: A steel ball of radius 2 cm is at rest on a frictionless surface. Another ball of radius 4cm moving at a velocity of 81 cm/sec collides elastically with first ball. After collision the smaller ball moves with speed of



1) 81 cm/sec
2) 63 cm/sec
3) 144 cm/sec
4) None of these
Solution: Explanation: No Explanation
WEP Elastic and Inelastic collision

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