This preview shows page 1. Sign up to view the full content.
55. (a) Let
v
be the final velocity of the ballgun system. Since the total momentum of the
system is conserved
mv
i
=
(
m + M
)
v
. Therefore,
(60 g)(22 m/s)
4.4 m/s
60 g + 240 g
i
mv
v
mM
==
=
+
.
(b) The initial kinetic energy is
Km
v
ii
=
1
2
2
and the final kinetic energy is
M
v
m
v
m
M
fi
=+
=
+
1
2
2
1
2
22
b
g
b
g
. The problem indicates
Δ
E
th
=
0, so the difference
K
i
– K
This is the end of the preview. Sign up
to
access the rest of the document.
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, Energy, Kinetic Energy, Momentum

Click to edit the document details