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CBSE Class 11-science Answered

A particle is projected vertically upwards.wt will be the ratio of time at 3/4 of its gr8st height?
Asked by | 12 Jun, 2008, 07:57: PM
answered-by-expert Expert Answer

At greatest height,

t=u/g,h=u2/2g

 

and 3/4 of greatest height,

3/4h=ut' - (1/2)gt'2

on solving, t'=t(/2

or t'/t=0.5

Answered by | 22 Jul, 2008, 10:25: PM
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