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April 20, 2014

April 20, 2014

Posted by **Anonymous** on Wednesday, February 8, 2012 at 1:33pm.

- physics -
**bobpursley**, Wednesday, February 8, 2012 at 1:48pmhf=hi+vivertical*timeinair- 9.8 time^2

0=0+V*sin36*t-9.8 t^2

so what is time in air.

timeinair= 31.4/Vhorizontal= 31.4/Vcos36

Vsin36*t=9.8t^2

Vsin36=9.8 t

V= 9.8/sin36 * 31.4/Vcos36

V= sqrt (9.8*31.4/sin36cos36)

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