Puck A (mass of 250 g) is initially moving to the right at 5.5 m/s, when it collides with puck B (mass = 415 g), which is initially at rest. After the collision, puck A moves off with a speed of 2.75 m/s at an angle of 65° as shown in the figure below. How much energy was lost during the collision and where did it go? %3D 65° +5.5 m/s At rest Before collision After collision

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### Collision of Two Pucks

**Scenario Description:**
- **Puck A** (mass of 250 g) is initially moving to the right at a velocity of 5.5 m/s.
- **Puck B** (mass of 415 g) is initially at rest.

**After the Collision:**
- Puck A moves off with a speed of 2.75 m/s at an angle of 65° from the original direction.

**Problem Statement:**
- Determine how much energy was lost during the collision and where it went.

**Diagram Explanation:**
- The diagram is divided into two sections: "Before collision" and "After collision."
- **Before Collision:**
  - Puck A is depicted moving to the right with a speed of +5.5 m/s towards puck B, which is at rest.
- **After Collision:**
  - Puck A changes direction, moving off at a 65° angle from its original path.
  - Puck B is shown moving at an angle in a different direction after the collision, although its speed is not specified.

### Analysis:
- To solve for the energy lost, consider the initial and final kinetic energies of the system.
- Calculate the energy transformation by comparing initial and final kinetic energies.

### Educational Context:
- This exercise helps illustrate concepts in physics such as conservation of momentum, conservation of energy, and energy loss in inelastic collisions due to factors like heat, sound, and deformation.
Transcribed Image Text:### Collision of Two Pucks **Scenario Description:** - **Puck A** (mass of 250 g) is initially moving to the right at a velocity of 5.5 m/s. - **Puck B** (mass of 415 g) is initially at rest. **After the Collision:** - Puck A moves off with a speed of 2.75 m/s at an angle of 65° from the original direction. **Problem Statement:** - Determine how much energy was lost during the collision and where it went. **Diagram Explanation:** - The diagram is divided into two sections: "Before collision" and "After collision." - **Before Collision:** - Puck A is depicted moving to the right with a speed of +5.5 m/s towards puck B, which is at rest. - **After Collision:** - Puck A changes direction, moving off at a 65° angle from its original path. - Puck B is shown moving at an angle in a different direction after the collision, although its speed is not specified. ### Analysis: - To solve for the energy lost, consider the initial and final kinetic energies of the system. - Calculate the energy transformation by comparing initial and final kinetic energies. ### Educational Context: - This exercise helps illustrate concepts in physics such as conservation of momentum, conservation of energy, and energy loss in inelastic collisions due to factors like heat, sound, and deformation.
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