A29 Distinguish between an elastic collision and an inelastic collision. A particie A of mass Ni moving with an initial velocity u makes a 'head-on' collision with another particle Bof mass 2m, B being initially at rest. In terms of u, calculate the final velocity of A if the collision is (i) elastic, (ii) inelastic, (assume that the two particles adhere on collision). (AEB, "79]

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