During a circus act, a performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of m1 = 9.5 kg and the horizontal component of its velocity is v = 7.8 m/s when the performer, of mass m2 = 69 kg, catches it.

College Physics
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ISBN:9781305952300
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Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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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During a circus act, a performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of m1 = 9.5 kg and the horizontal component of its velocity is v = 7.8 m/s when the performer, of mass m2 = 69 kg, catches it.

### Problem 10: Physics of a Performer on Roller Skates

**Objective**:
To find the recoil speed of a performer on nearly frictionless roller skates using principles of physics.

#### Part (a): Expression for Recoil Speed
- **Task**: Derive an expression for the performer's recoil speed \( v' \) in terms of the given masses and initial speed.
- **Input Area**: A text box is provided to enter the expression for \( v' \).
- **Symbols and Numbers Available**: An on-screen keypad features symbols like \(\alpha, \beta, \theta\), and letters such as \(a, b, h, g, j, k, m, m_1, m_2, p, t, v\). Also includes numbers 0-9 and operational symbols (+, -, *, /).

#### Hints
- **Available**: There are 2 hints each for a 0% deduction. 
- **Notes**:
  1. Identify the type of collision and determine what is conserved.
  2. Apply conservation of momentum to solve for the final speed.

#### Part (b): Calculate Recoil Speed
- **Task**: Determine the recoil speed in meters per second.

### Additional Info:
- **Grade Summary**:
  - Deductions: 0%
  - Potential: 100%
  - Late Work: 100%
  - Late Potential: 100%

- **Submissions**:
  - Attempts remaining: 4
  - Current Completion Status:
    - Attempts 1, 2, and 3: 0%
    - Attempting detailed view for insights.

### Navigation and Feedback
- **Submission Tools**: Options for "Submit", "Hint", "Feedback", and "I give up!" are provided.
- **Feedback Section**: Offers insight on submission attempt, currently none available.

---

**Note**: This is part of an ongoing assignment within the Learning Management System, Expert TA, designed for understanding and applying the principles of physics in practical scenarios.
Transcribed Image Text:### Problem 10: Physics of a Performer on Roller Skates **Objective**: To find the recoil speed of a performer on nearly frictionless roller skates using principles of physics. #### Part (a): Expression for Recoil Speed - **Task**: Derive an expression for the performer's recoil speed \( v' \) in terms of the given masses and initial speed. - **Input Area**: A text box is provided to enter the expression for \( v' \). - **Symbols and Numbers Available**: An on-screen keypad features symbols like \(\alpha, \beta, \theta\), and letters such as \(a, b, h, g, j, k, m, m_1, m_2, p, t, v\). Also includes numbers 0-9 and operational symbols (+, -, *, /). #### Hints - **Available**: There are 2 hints each for a 0% deduction. - **Notes**: 1. Identify the type of collision and determine what is conserved. 2. Apply conservation of momentum to solve for the final speed. #### Part (b): Calculate Recoil Speed - **Task**: Determine the recoil speed in meters per second. ### Additional Info: - **Grade Summary**: - Deductions: 0% - Potential: 100% - Late Work: 100% - Late Potential: 100% - **Submissions**: - Attempts remaining: 4 - Current Completion Status: - Attempts 1, 2, and 3: 0% - Attempting detailed view for insights. ### Navigation and Feedback - **Submission Tools**: Options for "Submit", "Hint", "Feedback", and "I give up!" are provided. - **Feedback Section**: Offers insight on submission attempt, currently none available. --- **Note**: This is part of an ongoing assignment within the Learning Management System, Expert TA, designed for understanding and applying the principles of physics in practical scenarios.
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