Posted by Elisa on Sunday, July 6, 2008 at 9:45am.
initial momentum = final momentum
.008 * V + .18 * 0 = .188 U
where V is initial bullet speed and U is horizontal speed off the table.
Now get U
t is fall time
horizontal distance = U t = 2.2
vertical distance = 4.9 t^2 = 1
t= sqrt (1/4.9)
solve that for t
U = 2.2 / t
V = (.188/.008) U
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