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i am realy confused regardin question 4 and 5.................
i though avg velocity=displacement /t2-t1...........dats da definition given in da hcverma..........
but in question number 4 avg vel =v1+v2/2
and in question 5 .....2/v=1/v1 + 1/v2........
how did they get all they answers...........pls explain!!
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Moderation Team
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