(b) In an elastic collision (correctly assign True or False to all statements),Momentum is conserved but not the internal energy.O TrueO FalseMomentum is not conserved but the internal energy is conserved.O TrueO FalseBoth momentum and internal energy are conserved.O TrueO False 1. A 65-kg ice hockey goalie, originally at rest, catches a 0.145-kg hockey puck slapped at him at avelocity of 35 m/s. Suppose the goalie and the ice puck have an elastic collision and the puck isreflected back in the direction from which it came.A sketch from the animation from Part 1 should look like this. Note the subscripts i and f indicatevelocities before and after the collision, respectively. The subscripts p and g represent the puck andthe goalie, respectively.Before collision m₂After Collision Vpfm,O The goalieO The puckO The goalie and the puckmVgi-0gfConsider: How many knowns are there and how many unknowns? How many equations do you needto solve for the unknowns? Can you identify the equations?(a) What would you consider a system in this collision?

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(b) In an elastic collision (correctly assign True or False to all statements), Momentum is conserved but not the internal energy. O True O False Momentum is not conserved but the internal energy is conserved. O True O False Both momentum and internal energy are conserved. O True O False

(b) In an elastic collision (correctly assign True or False to all statements), Momentum is conserved but not the internal energy. O True O False Momentum is not conserved but the internal energy is conserved. O True O False Both momentum and internal energy are conserved. O True O False

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 8PQ

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