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OpenStudy (anonymous):
A ball is dropped from a height of 20 meters. At what height does the ball have a velocity of 10 meters/second?
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OpenStudy (ujjwal):
use relation\[v ^{2}=2gh\] since initial velocity is zero.. Subtract the obtained value of h from 20 m, that will be your answer..
OpenStudy (ujjwal):
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