Prelab for Conservation of Linear Momentum.

Prelab for Conservation of Linear Momentum.

Prelab for Conservation of Linear Momentum
1
= 0.500 kg moves with a velocity of 0.900 m/s to the right on a
frictionless track. It
collides with another cart of mass
m
2
= 0.500 kg at rest. Car
m
1
stops and
m
2
moves in the direction that
m
1
was traveling. What is the magnitude and direction of the velocity
of
m
2
?
The calculations in the questions below are essentially wh
at you will have to do during the lab
period. To save time it is suggested that you construct a spreadsheet using Excel with columns
for the masses, initial and final velocities, so that they can be used to compute the desired
quantities: initial and fina
l total momentum and initial and final total kinetic energy for the
system. Bring a copy of the spreadsheet with you to lab on a flash drive, or you can email it to
yourself for use during class.
2. Cart 1 with mass 4.44 kg collides with a stationary ca
rt (cart 2) of mass 2.81 kg. Before the
collision cart 1 has a velocity of 4.94 m/s to the right. After the collision, cart 1 has a velocity
1.11 m/s to the right and cart 2 has a velocity 6.05 m/s to the right.
a. (2 points) What is the total momentum o
f the two cart system before the collision?
b. (2 points) What is the total kinetic energy of the two cart system before the collision?
c. (2 points) What is the total momentum of the two cart system after the collision?
d. (2 points) What is the total kinetic energy of the two cart system after the collision?
e. (1 point) Is this collision elastic or inelastic? Be wary of round
–
off errors here.

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