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September 1, 2014

September 1, 2014

Posted by **Julia** on Sunday, February 3, 2013 at 12:42pm.

- Physics please help!! -
**Damon**, Sunday, February 3, 2013 at 1:19pmat start u = u forever

Vi = Vi

u^2 + Vi^2 = 81 u^2

so

Vi^2 = 80 u^2

Vi = 8.94 u

tan A = Vi/u = 8.94

so

A = 83.6 degrees above horizontal

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