Practice Motion Of System Of Particles And Rigid Body (5) - Motion of System of Particles and Rigid Body

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10 questions

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6 sample questions

Question 1.
Define center of mass.
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Think about where mass is concentrated.
Question 2.
What is momentum?
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What do objects have when they're moving?
3Question 3.
What is the center of mass?
- The average position of mass
- The heaviest part of an object
- The geometric center only
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Consider how mass is balanced.
4Question 4.
True or False: In a closed system, momentum can be lost.
- True
- False
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Think about how momentum works in collisions.
Question 5.
A car of mass 1000 kg is moving with a velocity of 20 m/s. After a collision with another car of mass 1500 kg at rest, find the final velocity of both cars assuming conservation of momentum.
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Use the momentum conservation equation.
Question 6.
A disk rotates about its center. If the radius is doubled while keeping the mass the same, explain how this affects its moment of inertia.
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Consider how radius affects inertia.

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