A 2.4 kg breadbox on a frictionless incline of angle 6 - 36 * is connected, by a cord that runs over a pulley, to a light spring of spring constant k- 120 N/m, as shown in the figure. The box is released from rest when the spring is unstretched. Assume that the pulley is massle and frictionless. (a) What is the speed of the box when it has moved 10.0 cm down the incline? (b) How far down the incline from its point of release does the box slide before momentarily stopping, and what are the (c) magnitude and (d) direction of the box's acceleration a the instant the box momentarily stops?

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**Problem Statement:**

A 2.4 kg breadbox on a frictionless incline of angle \( \theta = 36^\circ \) is connected by a cord that runs over a pulley to a light spring of spring constant \( k = 120 \, \text{N/m} \), as shown in the diagram. The box is released from rest when the spring is unstretched. Assume that the pulley is massless and frictionless.

- **(a)** What is the speed of the box when it has moved 10.0 cm down the incline?
- **(b)** How far down the incline from its point of release does the box slide before momentarily stopping, and what are the **(c)** magnitude and **(d)** direction of the box’s acceleration at the instant the box momentarily stops?

**Diagram Explanation:**

The diagram illustrates an incline with an angle \( \theta = 36^\circ \). A pulley is mounted at the top of the incline, over which a cord runs connecting a mass (the breadbox) to a spring located horizontally. The breadbox is initially at rest at the top of the incline. The spring is shown unstretched at the initial position of the box. 

**Inputs for Calculation:**

- Mass of the breadbox: 2.4 kg
- Incline angle \( \theta \): \( 36^\circ \)
- Spring constant \( k \): \( 120 \, \text{N/m} \)
- Displacement down the incline for speed calculation: 10.0 cm

**Input Fields for Responses:**

- **(a)** Speed of the box (Number, Unit)
- **(b)** Distance down the incline (Number, Unit)
- **(c)** Magnitude of acceleration (Number, Unit)
- **(d)** Direction of acceleration (Select option)
Transcribed Image Text:**Problem Statement:** A 2.4 kg breadbox on a frictionless incline of angle \( \theta = 36^\circ \) is connected by a cord that runs over a pulley to a light spring of spring constant \( k = 120 \, \text{N/m} \), as shown in the diagram. The box is released from rest when the spring is unstretched. Assume that the pulley is massless and frictionless. - **(a)** What is the speed of the box when it has moved 10.0 cm down the incline? - **(b)** How far down the incline from its point of release does the box slide before momentarily stopping, and what are the **(c)** magnitude and **(d)** direction of the box’s acceleration at the instant the box momentarily stops? **Diagram Explanation:** The diagram illustrates an incline with an angle \( \theta = 36^\circ \). A pulley is mounted at the top of the incline, over which a cord runs connecting a mass (the breadbox) to a spring located horizontally. The breadbox is initially at rest at the top of the incline. The spring is shown unstretched at the initial position of the box. **Inputs for Calculation:** - Mass of the breadbox: 2.4 kg - Incline angle \( \theta \): \( 36^\circ \) - Spring constant \( k \): \( 120 \, \text{N/m} \) - Displacement down the incline for speed calculation: 10.0 cm **Input Fields for Responses:** - **(a)** Speed of the box (Number, Unit) - **(b)** Distance down the incline (Number, Unit) - **(c)** Magnitude of acceleration (Number, Unit) - **(d)** Direction of acceleration (Select option)
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