A ball of mass m and speed v travels horizontally, hits a wall, and rebounds. Another ball of the same mass and traveling at the same speed hits the wall and sticks to it. Which ball has a greater change in momentum as a result of the collision? Create a momentum bar chart to explain your answer.
A ball of mass m and speed v travels horizontally, hits a wall, and rebounds. Another ball of the same mass and traveling at the same speed hits the wall and sticks to it. Which ball has a greater change in momentum as a result of the collision? Create a momentum bar chart to explain your answer.
College Physics
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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
Transcribed Image Text:### Problem Statement
A ball of mass \( m \) and speed \( v \) travels horizontally, hits a wall, and rebounds. Another ball of the same mass and traveling at the same speed hits the wall and sticks to it. Which ball has a greater change in momentum as a result of the collision? Create a momentum bar chart to explain your answer.
### Explanation
To determine which ball experiences a greater change in momentum, we analyze the situations:
1. **Ball Rebounding:**
- Initial momentum, \( p_i = mv \)
- Final momentum after rebounding, \( p_f = -mv \)
- Change in momentum, \( \Delta p = p_f - p_i = -mv - mv = -2mv \)
2. **Ball Sticking:**
- Initial momentum, \( p_i = mv \)
- Final momentum after sticking, \( p_f = 0 \)
- Change in momentum, \( \Delta p = p_f - p_i = 0 - mv = -mv \)
### Momentum Bar Chart Explanation
- **Rebounding Ball:**
- Initial momentum bar: Height = \( mv \)
- Final momentum bar: Height = \(-mv\)
- Change: The total height of the bars = \( 2mv \)
- **Sticking Ball:**
- Initial momentum bar: Height = \( mv \)
- Final momentum bar: Height = \( 0 \)
- Change: The total reduction in height = \( mv \)
### Conclusion
The ball that rebounds experiences a greater change in momentum (\( 2mv \)) compared to the ball that sticks (\( mv \)).
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