Rolling friction on a horizontal surface

Click For Summary
SUMMARY

The discussion confirms that rolling friction is only necessary at the initiation of rolling motion for a cylindrical rod on a horizontal surface. Once the push is applied and the rod begins to roll without slipping, the only forces acting on it are its weight and the normal contact force. If the surface is then replaced with a frictionless one, the rod will continue to roll indefinitely at a constant linear velocity (v) and angular velocity (ω), maintaining the relationship v = rω.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concepts of rolling motion and friction
  • Knowledge of angular velocity and linear velocity relationships
  • Basic principles of dynamics on horizontal surfaces
NEXT STEPS
  • Study the principles of rolling motion in classical mechanics
  • Explore the effects of friction on different surfaces
  • Learn about the conservation of energy in rolling objects
  • Investigate the mathematical modeling of motion on frictionless surfaces
USEFUL FOR

Physics students, mechanical engineers, and anyone interested in the dynamics of rolling objects and frictional forces.

Happiness
Messages
686
Reaction score
30
Suppose a cylindrical rod is given a push such that it rolls without slipping on a horizontal plane. Am I right to say that rolling friction is only required at the start when the push is applied to initiate the rolling motion? Once the push is removed, the only forces acting on the rod are its weight and normal contact force? So the rod could continue rolling indefinitely at the same velocity ##v## and the same angular velocity ##\omega## without slipping (with ##v=r\omega##) if the plane is replaced by a frictionless one after rolling begins?
 
Physics news on Phys.org
Yes, that's correct.
 
  • Like
Likes   Reactions: Happiness

Similar threads

  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 7 ·
Replies
7
Views
6K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 59 ·
2
Replies
59
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 41 ·
2
Replies
41
Views
7K
  • · Replies 37 ·
2
Replies
37
Views
4K