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PHYSICS

Explore the concepts of elastic and inelastic collisions in physics through practical examples involving bowling pins and ice skaters. Understand the principles of conservation of momentum and velocity transformations in different scenarios.

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PHYSICS

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  1. PHYSICS

  2. Monday, 12/15/08 PHYSICS If you do the same old things, you get the same old results! RECALL: ptotal initial = ptotal final if no NET external force is acting ex. After being struck by a bowling ball, a 1.5kg bowling pin sliding to the right at 3.0m/s collides head-on with another 1.5kg bowling pin initially at rest. Find the final velocity of the second pin if the first pin moves to the right after the collision at 0.5m/s. 2.5m/s to the right

  3. p. 224 #22 a) A 65.0kg ice skater moving to the right with a velocity of 2.50m/s throws a 0.150kg snowball to the right with a velocity of 32.0m/s relative to the ground. What is the velocity of the first ice skater after throwing the snowball? 2.43m/s to the right p. 224 #22 b) A second skater initially at rest with a mass of 60.0kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision? .0797m/s to the right NOTE: “perfectly inelastic collision” – the objects stick together. NOTE: We are NOT ignoring friction!

  4. For a linear system with two objects, there are really only three possible scenarios: (1) the objects start apart, collide, then end apart 2) the objects start together, then split apart 3) the objects start apart, collide, and stick together (called a ‘perfectly inelastic’ collision) HW 29: p. 209/ 2, 3, 4; p. 214/ 2, 4

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