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Modelling collisions - class-XII
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When a ball collides head-on and elastically with an identical ball on a horizontal frictionless surface,comes to rest while the second one moves with the same velocity as that of the first ball before coillision .
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A
Can be derived by using both conservation of energy and momentum
💡 Explanation:
When two identical bodies undergo a one-dimensional elastic collision, energy conservation and momentum conservation together are necessary and sufficient to uniquely determine the final velocities, demonstrating that both principles are required.