a body is moving in a straight line with constant disaccleration 'a' losses 3/4th of its initial velocity u what is time of it motion?
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initial velocity=u ... final velocity=u/4
we know that v=u+at
⇒u/4=u-at
⇒u=4u-4at
⇒4at=3u
⇒t=3u/4a
we know that v=u+at
⇒u/4=u-at
⇒u=4u-4at
⇒4at=3u
⇒t=3u/4a
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