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5.2 Collisions

Chapter 5 Momentum Ewen et al. 2005 ). 5.2 Collisions. Objective: Apply the law of conservation of momentum to both elastic and inelastic collisions of two objects. Conservation of Momentum and Collisions.

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5.2 Collisions

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  1. Chapter 5 Momentum Ewen et al. 2005) 5.2 Collisions • Objective: • Apply the law of conservation of momentum to both elastic and inelastic collisions of two objects.

  2. Conservation of Momentum and Collisions • Whenever two objects collide in the absence of external forces, the total momentum of the objects before the collision equals to the momentum after the collision.

  3. Elastic Collisions • When two objects collide and return to their original shape without being permanently deformed.

  4. Inelastic Collisions • When two objects collide and couple together.

  5. Equations for two object collisions • Elastic Collision • Inelastic Collision

  6. Example 1 • One ball of mass 0.600 kg traveling 9.00 m/s to the tight collides with a second ball of mass 0.300 kg traveling to the left. After the collision, the heavier ball is traveling 2.33 m/s to the left. What is the velocity of the lighter ball after the collision?

  7. Example 2 • A 1.75 E4 kg railroad car traveling 8.00 m/s to the east collides and couples with a stopped 2.25 E4 kg railroad car. What is the velocity of the joined railroad cars after the collision?

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