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2. A mass of 2 kg is placed on a bar at a distance of r 1 m from the point 0. Initially, the bar is in a stationary state, as shown in the figure below. At t = 0, the bar starts a counter clockwise rotation around the point O at a constant angular acceleration of 1 rad/s2. It is known that the mass can stop on the bar without sliding until 0 = 30°. Based on these givens, please answer the following questions. a. What is the static friction coefficient between the mass and the bar? b. When the sliding starts, will the mass be moving towards the origin or away from the origin? %3D 1 rad/s2 2 kg r = 1m

2. A mass of 2 kg is placed on a bar at a distance of r 1 m from the point 0. Initially, the bar is in a stationary state, as shown in the figure below. At t = 0, the bar starts a counter clockwise rotation around the point O at a constant angular acceleration of 1 rad/s2. It is known that the mass can stop on the bar without sliding until 0 = 30°. Based on these givens, please answer the following questions. a. What is the static friction coefficient between the mass and the bar? b. When the sliding starts, will the mass be moving towards the origin or away from the origin? %3D 1 rad/s2 2 kg r = 1m

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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-5 -10 2. A mass of 2 kg is placed on a bar at a distance of r 1 m from the point 0. Initially, the bar is in a stationary state, as shown in the figure below. At t = 0, the bar starts a counter clockwise rotation around the point O at a constant angular acceleration of 1 rad/s2. It is known that the mass can stop on the bar without sliding until 0 =D 30°. Based on these givens, please answer the following questions. a. What is the static friction coefficient between the mass and the bar? b. When the sliding starts, will the mass be moving towards the origin or away from the origin? %3D 1 rad/s2 2 kg r = 1m 3. Please write your opinion about the following statement and prove your opinion by giving an example. "If a particle's angular momentum is conserved, the particle's linear momentum must also be conserved." 4. When is the conservation of energy equation used to solve problems in kinetics?
Transcribed Image Text:-5 -10 2. A mass of 2 kg is placed on a bar at a distance of r 1 m from the point 0. Initially, the bar is in a stationary state, as shown in the figure below. At t = 0, the bar starts a counter clockwise rotation around the point O at a constant angular acceleration of 1 rad/s2. It is known that the mass can stop on the bar without sliding until 0 =D 30°. Based on these givens, please answer the following questions. a. What is the static friction coefficient between the mass and the bar? b. When the sliding starts, will the mass be moving towards the origin or away from the origin? %3D 1 rad/s2 2 kg r = 1m 3. Please write your opinion about the following statement and prove your opinion by giving an example. "If a particle's angular momentum is conserved, the particle's linear momentum must also be conserved." 4. When is the conservation of energy equation used to solve problems in kinetics?
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