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(a) Using the impulse momentum theorem (Eq. 931) we find
G
GG
Jm
v m
v
fi
=−
=
−
−
=
⋅
12 10
12
25
42
..
bg
bgbg
b g
kg m s.
(b) From Eq. 935, we obtain
G
G
F
J
t
avg
N.
==
=
×
Δ
42
0 020
21 10
3
.
.
27. We choose +
y
upward, which means
G
v
i
25m s and
G
v
f
=+
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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, Force

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