Consider a physical system formed by a symmetrical rigid body with a circular profile of radius R. This rolls without sliding on a horizontal surface. Which of the following statements is not correct? a. The velocity at the point of contact of the rigid body with the horizontal surface is zero. b. The speed of the center of mass of the rigid body is ωR c. The friction force of the rigid body with the ground is kinetic. d. The acceleration of the center of mass of the rigid body is αR
Consider a physical system formed by a symmetrical rigid body with a circular profile of radius R. This rolls without sliding on a horizontal surface. Which of the following statements is not correct? a. The velocity at the point of contact of the rigid body with the horizontal surface is zero. b. The speed of the center of mass of the rigid body is ωR c. The friction force of the rigid body with the ground is kinetic. d. The acceleration of the center of mass of the rigid body is αR
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter8: Rotational Motion
Section: Chapter Questions
Problem 92A
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Consider a physical system formed by a symmetrical rigid body with a circular profile of radius R. This rolls without sliding on a horizontal surface.
Which of the following statements is not correct?
a. The velocity at the point of contact of the rigid body with the horizontal surface is zero.
b. The speed of the center of mass of the rigid body is ωR
c. The friction force of the rigid body with the ground is kinetic.
d. The acceleration of the center of mass of the rigid body is αR
a. The velocity at the point of contact of the rigid body with the horizontal surface is zero.
b. The speed of the center of mass of the rigid body is ωR
c. The friction force of the rigid body with the ground is kinetic.
d. The acceleration of the center of mass of the rigid body is αR
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