A billiard ball of mass 0.17 kg is traveling forward at 8.4 m/s when it makes a head-on one-dimensional elastic collision with a second (different) ball of unknown mass, initially at rest. After the collision the billiard ball continues moving forward at a slower speed of 5.6 m/s. What is the final speed of the second ball? 14 m/s 2.8 m/s 5.6 m/s -2.8 m/s

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter8: Momentum And Collisions
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A billiard ball of mass 0.17 kg is traveling forward at 8.4 m/s when it makes a head-on one-dimensional elastic collision
with a second (different) ball of unknown mass, initially at rest. After the collision the billiard ball continues moving
forward at a slower speed of 5.6 m/s. What is the final speed of the second ball?
14 m/s
2.8 m/s
5.6 m/s
-2.8 m/s
Transcribed Image Text:A billiard ball of mass 0.17 kg is traveling forward at 8.4 m/s when it makes a head-on one-dimensional elastic collision with a second (different) ball of unknown mass, initially at rest. After the collision the billiard ball continues moving forward at a slower speed of 5.6 m/s. What is the final speed of the second ball? 14 m/s 2.8 m/s 5.6 m/s -2.8 m/s
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