Contents
How is the rotation of a rigid body described?
Chapter 12. Rotation of a Rigid Body Not all motion can be described as that of a particle. Rotation requires the idea of an extended object. This diver is moving toward the water along a Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. parabolic trajectory, and she’s rotating rapidly around her center of mass.
Can a rigid body be described as a particle?
Rotation of a Rigid Body Not all motion can be described as that of a particle. Rotation requires the idea of an extended object. This diver is moving toward the water along a Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Is the rigid body in equilibrium either a or B?
C. neither A nor B. D. either A or B. E. both A and B. A. B. A rigid body is in equilibrium if Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. C. neither A nor B. D. either A or B. E. both A and B. Chapter 12. Basic Content and Examples
Why does an object rotate down a ramp?
Because the force of gravity and the normal force pass through the center of the object, the frictional force is the only force producing a torque about the center of the object – that’s why the object rotates. We’ll analyze the problem it from two different perspectives.
Why does the object that slides without friction win the race?
This is why the object that slides without friction wins the race against any of the rolling objects. Whichever way you analyze it, the object with the smallest value of c in I = cMR2wins the race. The mass and radius don’t make any difference – they canceled out in the equations.
What happens to the motion of an object when it slips?
Due to friction, objects undergoing slipping motion typically quickly slow down to v r, at which point they roll without slipping. Figure 5.8. 1: Five types of billiard shots. (a-c) The type of motion depends on where the cue hits the ball.
Which is part of the body has Xed coordinates?
In order to discuss other points which are part of the body, we will use an orthonormal coordinate system \\fxed in the body, known as the body coordinates, with the origin at the \\fxed point Re. The constraints mean that the position of each particle of the body has xed coordinates in terms of this coordinate system.
How to describe the motion of a macroscopic body?
A macroscopic body is made up of a very large number of atoms. Describing the motion of such a system without some simpli\\fcations is clearly impos- sible. Many objects of interest, however, are very well approximated by the assumption that the distances between the atoms in the body are \\fxed1, j~r −~r j=c = constant. (4.1)