Sunday

December 21, 2014

December 21, 2014

Posted by **sandhu** on Thursday, September 17, 2009 at 8:26pm.

- physics -
**bobpursley**, Thursday, September 17, 2009 at 8:39pmhf=0=40 + 12t-4.9t^2

solve for t, the time when the ball is at the bottom.

avg speed= 31/time

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