3. A thin rod is free to rotate without friction about a fixed axis at Point A. The other end (Point B) is attached to a (massless) cable at an angle of 45° relative to the rod. a. Initially the rod is being held stationary in a horizontal position. What is the force, F, in the cable? What are the forces that the support is putting on the rod at Point A? A Thin Rod m= 18 kg L=3m F W1 = 0 α1 = 0 α₂ = ? F₁ = ? b. The force, F, is suddenly changed to 200 N. What is the angular acceleration of the rod just after the force is changed? What are the forces that the support is putting on the rod at Point A now? Thin Rod m= 18 kg L=3m 45° F₂ = 200 N 45° B W₂ = 0 B

3. A thin rod is free to rotate without friction about a fixed axis at Point A. The other end (Point B) is attached to a (massless) cable at an angle of 45° relative to the rod. a. Initially the rod is being held stationary in a horizontal position. What is the force, F, in the cable? What are the forces that the support is putting on the rod at Point A? A Thin Rod m= 18 kg L=3m F W1 = 0 α1 = 0 α₂ = ? F₁ = ? b. The force, F, is suddenly changed to 200 N. What is the angular acceleration of the rod just after the force is changed? What are the forces that the support is putting on the rod at Point A now? Thin Rod m= 18 kg L=3m 45° F₂ = 200 N 45° B W₂ = 0 B

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotation Of A Rigid Object About A Fixed Axis

Section: Chapter Questions

Problem 10.7OQ: As shown in Figure OQ10.7, a cord is wrapped onto a cylindrical reel mounted on a fixed, friction...

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