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![[Post New]](/templates/default/images/icon_minipost_new.gif) 2 Jun 2008 23:36:17 IST
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see ravi
its easy to see that when body projected up comes back to projected position its speed is 19.6m/s downwards.
now from this instant it will follow other body's trajectory in same way as 2nd body do.
hence the only time gap is due to above mentioned path, that is clearly 4 sec.
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