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Do part B and DO NOT FIND THE GRAVITATIONAL TORQUE, FIND THE ANGULAR ACCELERATION.

Do part B and DO NOT FIND THE GRAVITATIONAL TORQUE, FIND THE ANGULAR ACCELERATION.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Do part B and DO NOT FIND THE GRAVITATIONAL TORQUE, FIND THE ANGULAR ACCELERATION.

### Physics Problem on Gravitational Torque **Problem Statement:** The 2.0-m-long, 15 kg beam in Figure P7.34 is hinged at its left end. It is "falling" (rotating clockwise, under the influence of gravity), and the figure shows its position at three different times. What is the gravitational torque on the beam about an axis through the hinged end when the beam is at the: - a. Upper position? - b. Middle position? - c. Lower position? **Figure P7.34 Explanation:** The diagram shows a beam that is 2.0 meters long and hinged at its left side. The beam is depicted in three positions: 1. **Upper Position:** The beam is angled upwards at 20 degrees above the horizontal. 2. **Middle Position:** The beam is horizontal, at 0 degrees. 3. **Lower Position:** The beam is angled downwards at 45 degrees below the horizontal. The weight of the beam (due to gravity) acts at its center, 1.0 meter from the hinge. The gravitational force creates a torque that causes rotational motion about the hinge. The goal is to calculate the torque at each position.
Transcribed Image Text:### Physics Problem on Gravitational Torque **Problem Statement:** The 2.0-m-long, 15 kg beam in Figure P7.34 is hinged at its left end. It is "falling" (rotating clockwise, under the influence of gravity), and the figure shows its position at three different times. What is the gravitational torque on the beam about an axis through the hinged end when the beam is at the: - a. Upper position? - b. Middle position? - c. Lower position? **Figure P7.34 Explanation:** The diagram shows a beam that is 2.0 meters long and hinged at its left side. The beam is depicted in three positions: 1. **Upper Position:** The beam is angled upwards at 20 degrees above the horizontal. 2. **Middle Position:** The beam is horizontal, at 0 degrees. 3. **Lower Position:** The beam is angled downwards at 45 degrees below the horizontal. The weight of the beam (due to gravity) acts at its center, 1.0 meter from the hinge. The gravitational force creates a torque that causes rotational motion about the hinge. The goal is to calculate the torque at each position.
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Part bGivenL=2mm=2 kgAskedAnglar acceleration=α=?

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