123. Using the same coordinate system assumed in Eq. 425, we find
x
for the elevated
cannon from
yx
gx
v
y
=−
=
−
tan
cos
θ
0
2
00
2
2
30
b
g
where
m.
Using the quadratic formula (choosing the positive root), we find
xv
vv
g
y
g
=
+−
F
H
G
G
I
K
J
J
2
2
cos
sin
θθ
bg
which yields
x
= 715 m for
v
0
= 82 m/s and
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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