Straighterline Introduction to Physics (lab) PHY250L Lab 7 Conservation of Momentum
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Lab Report Format Expectations
Utilize college level grammar and formatting when answering text based questions.
Report all equations in a proper mathematical format, with the correct signs and symbols.
Submissions with incomplete or improperly formatted responses may be rejected.
Pre-Lab Questions
1. A billiard ball collides head-on with a billiard ball at rest.
a. Sketch a position vs. time graph for each ball. Include the position before the collision,
once the collision occurs and after the collision. Include your hand written name in your
diagram.
, Lab 7 Conservation of Momentum PHY250L
b. What can be said about the conservation of momentum for the collision? Explain your
answer.
Since the momentum of the first ball was transferred to the second during the
collision, it is possible to conclude that the conservation of momentum held true. The
initial total momentum and the final total momentum are equal.
c. Write down the total momentum for two marbles of mass, m, both moving at velocity,
v. What is the kinetic energy of the system?
The momentum of the two marbles equals mv + mv = 2mv. The total kinetic energy is
1/2mv^2 +1/2mv^2 = mv^2.
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