A 1.10-kg object slides to the right on a surface having a coefficient of kinetic friction 0.250 (Figure a). The object has a speed of v, = 2.80 m/s when it makes contact with a light spring (Figure b) that has a force constant of 50.0 N/m. The object comes to rest after the spring has been compressed a distance d (Figure c). The object is then forced toward the left by the spring (Figure d) and continues to move in that direction beyond the spring's unstretched position. Finally, the object comes to rest a distance D to the left of the unstretched spring (Figure e). v = 0 e (a) Find the distance of compression d (in m). (b) Find the speed v (in m/s) at the unstretched position when the object is moving to the left (Figure d). m/s

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### Physics Problem: Spring and Friction Dynamics

A 1.10-kg object slides to the right on a surface with a coefficient of kinetic friction of 0.250.

- **Initial Conditions:**
  - Speed \((v_i)\): 2.80 m/s
  - Force constant of the spring \((k)\): 50.0 N/m

#### Sequence of Motion:

- **Figure a:** The object is moving towards a light spring with an initial speed \((v_i)\) of 2.80 m/s.

- **Figure b:** The object makes contact with the spring.

- **Figure c:** The object compresses the spring by a distance \(d\) and comes to rest temporarily \((v_f = 0)\).

- **Figure d:** The compressed spring pushes the object back to the left with the same speed \((v_i)\).

- **Figure e:** The object moves beyond the spring's unstretched position and eventually comes to rest at a distance \(D\) to the left.

#### Tasks:

(a) Find the distance of compression \(d\) in meters.
   - Input field: \([\_\_\_\_] \, \text{m}\)

(b) Find the speed \(v\) (in m/s) at the unstretched position when the object is moving to the left (Figure d).
   - Input field: \([\_\_\_\_] \, \text{m/s}\)

### Diagram Explanation:

1. **Spring-Mass System:**
   - The spring is shown on the right, initially unstretched.
   - The mass \(m\) is on the left of the spring, and as it moves right, it compresses the spring.

2. **Motion Sequence:**
   - As the object moves right, it compresses the spring up to distance \(d\) where its velocity becomes zero.
   - The spring then pushes the object to the left beyond its natural length, eventually stopping at a distance \(D\).

### Concepts Involved:

- **Kinetic Friction:** Affects the motion of the sliding object.
- **Spring Force:** Compression and decompression of the spring store and release energy.
- **Energy Conservation:** Kinetic and potential energy transformations in the presence of friction.

This problem involves applying principles of dynamics, energy conservation, and friction to calculate unknown variables like \(d\) and \(v\).
Transcribed Image Text:### Physics Problem: Spring and Friction Dynamics A 1.10-kg object slides to the right on a surface with a coefficient of kinetic friction of 0.250. - **Initial Conditions:** - Speed \((v_i)\): 2.80 m/s - Force constant of the spring \((k)\): 50.0 N/m #### Sequence of Motion: - **Figure a:** The object is moving towards a light spring with an initial speed \((v_i)\) of 2.80 m/s. - **Figure b:** The object makes contact with the spring. - **Figure c:** The object compresses the spring by a distance \(d\) and comes to rest temporarily \((v_f = 0)\). - **Figure d:** The compressed spring pushes the object back to the left with the same speed \((v_i)\). - **Figure e:** The object moves beyond the spring's unstretched position and eventually comes to rest at a distance \(D\) to the left. #### Tasks: (a) Find the distance of compression \(d\) in meters. - Input field: \([\_\_\_\_] \, \text{m}\) (b) Find the speed \(v\) (in m/s) at the unstretched position when the object is moving to the left (Figure d). - Input field: \([\_\_\_\_] \, \text{m/s}\) ### Diagram Explanation: 1. **Spring-Mass System:** - The spring is shown on the right, initially unstretched. - The mass \(m\) is on the left of the spring, and as it moves right, it compresses the spring. 2. **Motion Sequence:** - As the object moves right, it compresses the spring up to distance \(d\) where its velocity becomes zero. - The spring then pushes the object to the left beyond its natural length, eventually stopping at a distance \(D\). ### Concepts Involved: - **Kinetic Friction:** Affects the motion of the sliding object. - **Spring Force:** Compression and decompression of the spring store and release energy. - **Energy Conservation:** Kinetic and potential energy transformations in the presence of friction. This problem involves applying principles of dynamics, energy conservation, and friction to calculate unknown variables like \(d\) and \(v\).
(c) Find the distance \( D \) (in m) where the object comes to rest.

[Input box] m

(d) *What If?* If the object becomes attached securely to the end of the spring when it makes contact, what is the new value of the distance \( D \) (in m) at which the object will come to rest after moving to the left?

[Input box] m
Transcribed Image Text:(c) Find the distance \( D \) (in m) where the object comes to rest. [Input box] m (d) *What If?* If the object becomes attached securely to the end of the spring when it makes contact, what is the new value of the distance \( D \) (in m) at which the object will come to rest after moving to the left? [Input box] m
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