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January 27, 2015

January 27, 2015

Posted by **Mary** on Sunday, January 9, 2011 at 4:37pm.

- Physics -
**drwls**, Sunday, January 9, 2011 at 4:53pmX = 4 m/s * T

where T is the time it takes to reach the ground.

(1/2)gT^2 = H

T = sqrt(2H/g)

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