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August 30, 2014

August 30, 2014

Posted by **divya** on Wednesday, July 27, 2011 at 9:04pm.

- physics -
**drwls**, Thursday, July 28, 2011 at 4:16amThe kinetic energy of the ball when thrown must equal the potential energy it must gain to reach the top.

(1/2) M V^2 = M g H

V = sqrt(2 g H) = 99 m/s = 221 mph

That building is higher than the Empire State Building.

No one can throw a ball that fast. The best fast ball pitchers throw baseballs at 100 mph

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