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April 16, 2014

April 16, 2014

Posted by **Nat** on Sunday, August 25, 2013 at 1:25am.

Please help!

- physics -
**Damon**, Sunday, August 25, 2013 at 8:21amu = 8.23/1.73 = 4.76 m/s horizontal speed

in air for 1.73 s

so going up for .865 s

v = Vi - g t

0 = Vi - 9.81(.865)

so

Vi = 8.49 m/s initial speed up

for resultant initial speed

s^2 = u^2 + Vi^2

= 22.66 + 72.1 = 94.7

so

s = 9.73 m/s

T = angle to horizontal

sin T = 8.49/9.73

T = 60.8 degrees above horizontal

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