9.41.
Model:
This is a twopart problem. First, we have an inelastic collision between the wood block and
the bullet. The bullet and the wood block are an isolated system. Since any external force acting during the
collision is not going to be significant (the impulse approximation), the momentum of the system will be
conserved. The second part involves the dynamics of the block
bullet
+
sliding on the wood table. We treat the
block and the bullet as particles.
Visualize:
Solve:
The equation
fi
x
x
p
p
=
gives
()
( ) ( )
BW
f
B
i
W
i
xx
x
mmv m
v
mv
+=
+
( )( ) ( )( )
B
0.010 kg
10 kg
0.010 kg
10 kg
0 m/s
vv
⇒+
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This note was uploaded on 12/10/2011 for the course PHYS 1211 taught by Professor Geller during the Fall '09 term at UGA.
 Fall '09
 geller
 Force

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