1. At the state shown, the disk rotates about O in the counterclockwise direction at 4 rad/s. This rotation is decreasing at a rate of 10 rad/s². The motion of the slider, A, is controlled separately and at roA = 6 inches: a. r = 5 in/s in b. * = 81/2 A 2. Determine: a. The absolute velocity of A b. The acceleration of A at this position

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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### Educational Content on Rotational Motion

#### Diagram Description
The diagram depicts a disk rotating around point O. The disk is shown with two blue sections and a white path through which a slider, labeled as A, moves. The disk rotates counterclockwise with an angular velocity \( \omega \) and an angular deceleration \( \dot{\omega} \).

#### Problem Statement

1. **Initial Conditions:**
   - The disk rotates around point O in the counterclockwise direction at a rate of 4 radians per second.
   - The rotation is decreasing at a rate of 10 radians per second squared (\( \dot{\omega} = -10 \, \text{rad/s}^2 \)).
   - The motion of the slider A is controlled separately at a distance \( r_{OA} = 6 \) inches from O:
     - \( \dot{r} = 5 \text{ in/s} \)
     - \( \ddot{r} = 81 \text{ in/s}^2 \)

2. **Determine:**
   a. The absolute velocity of point A.
   b. The acceleration of point A at this position. 

This exercise involves calculating the kinematic quantities for the given rotational and translational motions.
Transcribed Image Text:### Educational Content on Rotational Motion #### Diagram Description The diagram depicts a disk rotating around point O. The disk is shown with two blue sections and a white path through which a slider, labeled as A, moves. The disk rotates counterclockwise with an angular velocity \( \omega \) and an angular deceleration \( \dot{\omega} \). #### Problem Statement 1. **Initial Conditions:** - The disk rotates around point O in the counterclockwise direction at a rate of 4 radians per second. - The rotation is decreasing at a rate of 10 radians per second squared (\( \dot{\omega} = -10 \, \text{rad/s}^2 \)). - The motion of the slider A is controlled separately at a distance \( r_{OA} = 6 \) inches from O: - \( \dot{r} = 5 \text{ in/s} \) - \( \ddot{r} = 81 \text{ in/s}^2 \) 2. **Determine:** a. The absolute velocity of point A. b. The acceleration of point A at this position. This exercise involves calculating the kinematic quantities for the given rotational and translational motions.
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