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April 18, 2014

April 18, 2014

Posted by **joleen** on Saturday, December 11, 2010 at 10:24am.

- Physics -
**drwls**, Saturday, December 11, 2010 at 10:30amNo matter what angle you throw it at, the kinetic energy increases by

M g *1.8 m when it hits the ground. That means

(M/2)(V2^2 - V1^2) = M*g*1.8

Note that the mass M cancels.

V2^2 = 2*g*1.8m + V1^2

= 37.04 m^2/s^2 + V1^2

= 37.04 + 94.1

Solve for V1

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