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October 1, 2014

October 1, 2014

Posted by **andrew** on Wednesday, December 9, 2009 at 6:21pm.

How long does it take for the stone to fall to the water?

- physics -
**drwls**, Wednesday, December 9, 2009 at 7:22pmThe initial speed, which is horizontal, does not matter. You only need to solve the equation for vertical motion.

55 m = (g/2) t^2 = 4.9 t^2

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