*23 ILW The string in Fig. 8-38 is L = 120 cm long, has a ball attached to one end, and is -L- %3D fixed at its other end. The dis- d tance d from the fixed end to a fixed peg at point P is 75.0 cm. When the initially stationary ball is released with the string horizontal as shown, it will swing along the dashed arc. What is its speed when it reaches (a) its lowest point and (b) its highest point after the string catches on the peg? Figure 8-38 Problems 23 and 70. 4-

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**Transcription for Educational Resource**

---

**Problem 23:**

The string in Fig. 8-38 is \( L = 120 \, \text{cm} \) long, has a ball attached to one end, and is fixed at its other end. The distance \( d \) from the fixed end to a fixed peg at point \( P \) is \( 75.0 \, \text{cm} \). When the initially stationary ball is released with the string horizontal as shown, it will swing along the dashed arc. What is its speed when it reaches:
  
(a) its lowest point and  
(b) its highest point after the string catches on the peg?

---

**Explanation of Diagram:**

- The diagram displays a vertical view of a pendulum system.
- A string of length \( L = 120 \, \text{cm} \) is shown with a ball attached to its end.
- The string is fixed at the top end, and there is a peg at point \( P \). 
- The distance \( d = 75.0 \, \text{cm} \) is marked from the fixed end to the peg.
- The dashed arc depicts the path of the ball as it swings downward and then upward after hitting the peg.
- The ball moves from an initially horizontal position along the arc, changing height and speed as it swings.

---

This description and transcription are meant for use in educational settings to help in visualizing and solving the physics problem provided in the context of pendulum motion.
Transcribed Image Text:**Transcription for Educational Resource** --- **Problem 23:** The string in Fig. 8-38 is \( L = 120 \, \text{cm} \) long, has a ball attached to one end, and is fixed at its other end. The distance \( d \) from the fixed end to a fixed peg at point \( P \) is \( 75.0 \, \text{cm} \). When the initially stationary ball is released with the string horizontal as shown, it will swing along the dashed arc. What is its speed when it reaches: (a) its lowest point and (b) its highest point after the string catches on the peg? --- **Explanation of Diagram:** - The diagram displays a vertical view of a pendulum system. - A string of length \( L = 120 \, \text{cm} \) is shown with a ball attached to its end. - The string is fixed at the top end, and there is a peg at point \( P \). - The distance \( d = 75.0 \, \text{cm} \) is marked from the fixed end to the peg. - The dashed arc depicts the path of the ball as it swings downward and then upward after hitting the peg. - The ball moves from an initially horizontal position along the arc, changing height and speed as it swings. --- This description and transcription are meant for use in educational settings to help in visualizing and solving the physics problem provided in the context of pendulum motion.
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