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January 26, 2015

January 26, 2015

Posted by **renu** on Saturday, February 16, 2013 at 7:04am.

- physics -
**drwls**, Saturday, February 16, 2013 at 7:31amHow does a stone "receive" ground? Do you mean "reach" ground?

How do you define "retardation"? The backwards drag fiorce in mud?

The height H that the stone falls in time t is

H = (g/2)*t^2

H = 4.9*16 = 78.4 meters

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