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University of Toronto

PHYS

PHYS 1AH22

Unit 2 Momentum Conservation.pdf

Unit 2 Momentum Conservation.pdf – Name Date Period…


  • University of Toronto


  • PHYS 1AH22

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Name ________________________________________ Date __________ Period ________
Worksheet: Conservation of Momentum
C H AP T E R 8:
Mo m en t u m
Directions: Answer the following questions concerning the conservation of momentum using the
equations below.
Show all of you work to receive credit.
mv
p
=
)
(
mv
Ft
Δ
=
t
F
impulse
Δ
=
after
before
p
p
=
net momentum
before
= net momentum
after
after
before
v
m
v
m
v
m
v
m
)
(
)
(
2
2
1
1
2
2
1
1
+
=
+
1. When these two freight cars of different mass collide and couple, what will be their resultant
velocity?
2. A 2 kg blob of putty moving at 4 m/s slams into a 6 kg blob of putty at rest.
What is the speed
of the two stuck-together blobs immediately after colliding?
3. A football player runs at 8 m/s and plows into a 80 kg referee standing on the field causing
the referee to fly forward at 5.0 m/s.
If this were a perfectly elastic collision, what would the
mass of football player be?
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4. Assuming that this is a perfect inelastic
collision, calculate the velocity after the
collision in the example below.
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  • Summer 11
  • Dr.R

  • Physics,

    Momentum,

    Work


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