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9.8 Momentum and Kinetic Energy in Collisions

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1 9.8 Momentum and Kinetic Energy in Collisions
The linear momentum is conserved for collisions in a closed and isolated system. In an elastic collision, the total kinetic energy is conserved. In an inelastic collision, the total kinetic energy is not conserved. In a completely inelastic collision, the colliding objects stick together, after the collision. What is the second object for the collisions shown in the figure?

2 9.10 Elastic Collisions in One Dimension
Stationary Target. Closed & Isolated system. Momentum & Kinetic Energy are conserved.

3 9.11 Collisions in Two Dimensions

4 9.12 Systems with Varying Mass: A Rocket
Problem 76:A 6090 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?


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