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September 20, 2014

September 20, 2014

Posted by **bere** on Tuesday, March 8, 2011 at 4:13pm.

- physics -
**Ian**, Tuesday, March 8, 2011 at 7:17pmy = Vi(t) + 1/2(a)(t^2)

400 = (0m/s)t + 1/2(9.8)(t^2)

use the quadratic equation to solve for t

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