1) Take a look at the set-up below; initially, the spring is relaxed. The static and kinetic friction coefficients are approximately the same. You start pulling with constant force F (red arrow) on the bottom block. You continue to pull - albeit very slowly- until the top block falls off the bottom block. Lim μ μ m m 0 a. In your own words, describe the motion of the green and blue blocks. What is happening? b. Draw the force and free-body diagrams for the blocks. c. How far do you have to pull the bottom block until the top block falls off? d. Until the moment when the top block tumbles off, how much work have you done on the system? e. Until the moment when the top block tumbles off, how much work has the top block done on the bottom block?

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### Physics Experiment: Understanding Friction and Motion

#### Task Overview:
1. **Setup Description:**
   - A spring is initially relaxed.
   - Two blocks: a top block (blue) with mass \(m\) and a bottom block (green) also with mass \(m\).
   - The static and kinetic friction coefficients (\(\mu\)) are approximately the same for both blocks.
   - A constant force \(F\) (indicated by a red arrow) is applied to the bottom block.
   - You continue pulling slowly until the top block falls off.

   ![Diagram: Spring-Block System](https://example.com/image.png)

   - **Diagram Explanation:**
     - A spring with constant \(k\) is connected to a wall (black).
     - The blue block (\(m\)) is on top of the green block (\(m\)).
     - Position \(d\) is marked from the spring to the blue block.
     - The horizontal surface has a coordinate system labeled with \(x\).

#### Questions:
a. **Motion Description:**
   - Describe the motion of the green (bottom) and blue (top) blocks.

b. **Force and Free-Body Diagrams:**
   - Draw the force diagrams for both the top and bottom blocks.

c. **Distance Calculation:**
   - Determine how far the bottom block must be pulled until the top block falls off.

d. **Work Done on the System:**
   - Calculate the total work done on the system until the top block tumbles off.

e. **Work Done on the Bottom Block:**
   - Calculate how much work the top block does on the bottom block until it falls off.

This exercise explores the concepts of force, friction, and mechanical work in a dynamic system. It encourages understanding through analysis and diagram creation.
Transcribed Image Text:### Physics Experiment: Understanding Friction and Motion #### Task Overview: 1. **Setup Description:** - A spring is initially relaxed. - Two blocks: a top block (blue) with mass \(m\) and a bottom block (green) also with mass \(m\). - The static and kinetic friction coefficients (\(\mu\)) are approximately the same for both blocks. - A constant force \(F\) (indicated by a red arrow) is applied to the bottom block. - You continue pulling slowly until the top block falls off. ![Diagram: Spring-Block System](https://example.com/image.png) - **Diagram Explanation:** - A spring with constant \(k\) is connected to a wall (black). - The blue block (\(m\)) is on top of the green block (\(m\)). - Position \(d\) is marked from the spring to the blue block. - The horizontal surface has a coordinate system labeled with \(x\). #### Questions: a. **Motion Description:** - Describe the motion of the green (bottom) and blue (top) blocks. b. **Force and Free-Body Diagrams:** - Draw the force diagrams for both the top and bottom blocks. c. **Distance Calculation:** - Determine how far the bottom block must be pulled until the top block falls off. d. **Work Done on the System:** - Calculate the total work done on the system until the top block tumbles off. e. **Work Done on the Bottom Block:** - Calculate how much work the top block does on the bottom block until it falls off. This exercise explores the concepts of force, friction, and mechanical work in a dynamic system. It encourages understanding through analysis and diagram creation.
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