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![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Feb 2008 20:39:28 IST
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The forward force for the motion is given by friction. So max acceleration is ug.
Initial velocity = 0
50= 1/2 * 9 * t^2
10/3 sec = t
Similarly you can find retardation which will come out to be the same, i suppose.
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