M (e) In another experiment, the block is pushed against the spring and released. Instead of launching off the table it collides and sticks to a long uniform rod pivoted around the end as shown above. Which of the following quantities, if any, are not constant during the collision? • Kinetic Energy • Linear Momentum Angular Momentum

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**Physics Collision Experiment: Analysis of Conservation Quantities**

**Experimental Setup:**
The image depicts a block-spring system arranged on a table, positioned next to a vertical rod. The table surface is free of any obstructions in the path of the block.

- **Key Elements:**
    - *Spring*: The block is pushed against it, compressing the spring a distance of \( L \).
    - *Block*: Denoted by mass \( M \), placed at the equilibrium position of the spring.
    - *Rod*: A long, uniform rod of unspecified mass, pivoted at one end and free to rotate.

**Procedure:**
1. The block is pushed against the spring and then released.
2. The released block moves and collides with the rod.
3. The block sticks to the rod upon collision.

**Critical Question:**
During the collision between the block and the rod, which of the following physical quantities might not be conserved?

**Quantities to Evaluate:**
- **Kinetic Energy**
- **Linear Momentum**
- **Angular Momentum**

**Diagrams Explained:**
1. **Top View:**
   - The compressed spring with the block constrained by the spring force.
   - The rod positioned perpendicular to the table, capable of rotating through the collision.

2. **Side View (also front view):**
   - The rod is pivoted vertically from a height \( H \) off the table, available for rotational dynamics.

**Analysis Framework:**
During the collision process:
- **Kinetic Energy**: Generally not conserved due to the inelastic nature of the collision (block sticks to the rod).
- **Linear Momentum**: May not be conserved due to external forces acting at the pivot.
- **Angular Momentum**: Typically conserved about the pivot point in the absence of external torques.

**Conclusion:**
Understanding the conservation laws and behavior of different dynamical variables in such experimentations is fundamental in introductory mechanics. This experiment serves as a practical example to explore these concepts in a controlled environment.

For pedagogical resources, further details on collision dynamics, energy transformations, and rotational motion can provide a deeper insight and understanding for students.
Transcribed Image Text:**Physics Collision Experiment: Analysis of Conservation Quantities** **Experimental Setup:** The image depicts a block-spring system arranged on a table, positioned next to a vertical rod. The table surface is free of any obstructions in the path of the block. - **Key Elements:** - *Spring*: The block is pushed against it, compressing the spring a distance of \( L \). - *Block*: Denoted by mass \( M \), placed at the equilibrium position of the spring. - *Rod*: A long, uniform rod of unspecified mass, pivoted at one end and free to rotate. **Procedure:** 1. The block is pushed against the spring and then released. 2. The released block moves and collides with the rod. 3. The block sticks to the rod upon collision. **Critical Question:** During the collision between the block and the rod, which of the following physical quantities might not be conserved? **Quantities to Evaluate:** - **Kinetic Energy** - **Linear Momentum** - **Angular Momentum** **Diagrams Explained:** 1. **Top View:** - The compressed spring with the block constrained by the spring force. - The rod positioned perpendicular to the table, capable of rotating through the collision. 2. **Side View (also front view):** - The rod is pivoted vertically from a height \( H \) off the table, available for rotational dynamics. **Analysis Framework:** During the collision process: - **Kinetic Energy**: Generally not conserved due to the inelastic nature of the collision (block sticks to the rod). - **Linear Momentum**: May not be conserved due to external forces acting at the pivot. - **Angular Momentum**: Typically conserved about the pivot point in the absence of external torques. **Conclusion:** Understanding the conservation laws and behavior of different dynamical variables in such experimentations is fundamental in introductory mechanics. This experiment serves as a practical example to explore these concepts in a controlled environment. For pedagogical resources, further details on collision dynamics, energy transformations, and rotational motion can provide a deeper insight and understanding for students.
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