Member AB has the angular velocity wAR = 4 rad/s and angular acceleration a AB = 8 rad/s. (Figure 1) %3D

Elements Of Electromagnetics
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**Problem 16.122**

Member \( AB \) has the angular velocity \( \omega_{AB} = 4 \, \text{rad/s} \) and angular acceleration \( \alpha_{AB} = 8 \, \text{rad/s}^2 \) (Figure 1).

---

**Determine the angular velocity of member \( CD \) at the instant shown measured counterclockwise.**

Express your answer using three significant figures. Enter a positive value if the angular velocity is counterclockwise and a negative value if the angular velocity is clockwise.

\[ \omega_{CD} = \, \text{rad/s} \]

---

**Part B**

Determine the angular acceleration of member \( CD \) at the instant shown measured counterclockwise.

Express your answer using three significant figures. Enter a positive value if the angular acceleration is counterclockwise and a negative value if the angular acceleration is clockwise.

\[ \alpha_{CD} = \, \text{rad/s}^2 \]

---

**Figure Description:**

The diagram shows a mechanical linkage with two members \( AB \) and \( CD \). Member \( AB \) is 300 mm long, and member \( BC \) is 500 mm long. The angle between members \( BC \) and \( CD \) is \( 60^\circ \). Member \( CD \) is 200 mm long. Points \( A \), \( B \), \( C \), and \( D \) mark the joints. Both the angular velocity \( \omega_{AB} \) and angular acceleration \( \alpha_{AB} \) are shown at point \( B \).
Transcribed Image Text:**Problem 16.122** Member \( AB \) has the angular velocity \( \omega_{AB} = 4 \, \text{rad/s} \) and angular acceleration \( \alpha_{AB} = 8 \, \text{rad/s}^2 \) (Figure 1). --- **Determine the angular velocity of member \( CD \) at the instant shown measured counterclockwise.** Express your answer using three significant figures. Enter a positive value if the angular velocity is counterclockwise and a negative value if the angular velocity is clockwise. \[ \omega_{CD} = \, \text{rad/s} \] --- **Part B** Determine the angular acceleration of member \( CD \) at the instant shown measured counterclockwise. Express your answer using three significant figures. Enter a positive value if the angular acceleration is counterclockwise and a negative value if the angular acceleration is clockwise. \[ \alpha_{CD} = \, \text{rad/s}^2 \] --- **Figure Description:** The diagram shows a mechanical linkage with two members \( AB \) and \( CD \). Member \( AB \) is 300 mm long, and member \( BC \) is 500 mm long. The angle between members \( BC \) and \( CD \) is \( 60^\circ \). Member \( CD \) is 200 mm long. Points \( A \), \( B \), \( C \), and \( D \) mark the joints. Both the angular velocity \( \omega_{AB} \) and angular acceleration \( \alpha_{AB} \) are shown at point \( B \).
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