Lecture 17
Monday 10/5/09
Chapter 8:
Momentum, Impulse, and Collisions
•
Momentum
of a particle:
•
Impulse
exerted on a particle:
•
Impulse-Momentum Theorem
:
•
Principle of Conservation of Momentum
for a system of
particles
F
net
=
d
p
/
dt
K
=
p
2
/ (2
m
)
±
p
=
m
±
v
±
J
=
±
F
net
t
1
t
2
±
dt
±
±
p
=
±
J
±
P
=
±
p
i
i
±
If
±
F
net ext
=
0, then
±
P
is conserved

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