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![[Post New]](/templates/default/images/icon_minipost_new.gif) 11 Nov 2007 10:52:31 IST
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Are you sure about the answer? This is what I am getting:
Conserving energies before and after collision:
-3Gm2/a = -3Gm2/2R + 3/2 mv2
Solving for v, we get v =  Gm[1/R - 2/a]
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Will nip in at times to solve problems :)
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this reply: 5 points
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