phy221 ch10: center of mass
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PHY221 Ch10: Center of Mass
1. Recall main points:
= =
2. Discussion and examples• If =0, CM moves at constant velocity• Explosion of a projectile in flight (free fall)• Example of computation CM for three particles
PHY221 Ch10: Center of Mass1.
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𝑀 �⃗�𝐶𝑀= �⃗� 𝑁𝑒𝑡 𝐸𝑥𝑡𝑒𝑟𝑛𝑎𝑙𝑀=∑𝑚𝑖Proof:
PHY221 Ch10: Center of Mass2.
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Problem: Fnet=0 problems
PHY221 Ch10: Center of Mass2.
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Problem: Projectile explodes in mid-air. What is the trajectory of CM?
PHY221 Ch10: Center of Mass2.
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Problem: Compute CM for three particles
PHY221 Ch10: Center of Mass2.
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CM of CM
PHY221 Ch10: Center of Mass2.
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CM continuous distribution
PHY221 Ch10: Center of MassQue
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PHY221 Ch10: Center of MassQue
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