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Two bodies A and B have masses m and 4 m. A collides head on elastically with B (at rest).

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Two bodies A and B have masses m and 4 m. A collides head on elastically with B (at rest). Calculate the percentage of KE of A transferred to B.

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We have m1 = m;  m2 = 4 m

u1 = u (say)  u2 = 0

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