Rotating & Moving Spheres: What Causes Torque & Force?

Click For Summary
SUMMARY

The discussion focuses on the mechanics of rotating and moving spheres, emphasizing the role of friction in generating torque and net force. When a central force acts on a sphere, it rotates and moves due to the torque provided by friction. Conversely, in the absence of friction, such as on a frictionless surface, the sphere would not exhibit these movements. The conversation also highlights the differences in the direction of friction in both scenarios, underscoring its critical role in motion dynamics.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concepts of torque and angular momentum
  • Knowledge of frictional forces and their effects on motion
  • Basic principles of rotational dynamics
NEXT STEPS
  • Research the mathematical formulation of torque in rotational systems
  • Explore the relationship between angular momentum and friction in moving bodies
  • Study the effects of friction on different surfaces and materials
  • Investigate the principles of rotational dynamics in real-world applications
USEFUL FOR

Physics students, mechanical engineers, and anyone interested in the principles of motion and dynamics related to rotating bodies.

akshay86
Messages
30
Reaction score
1
if a central force acts on a sphere it will rotate and move and also a angular momentum is given to that body it will also move in the same manner.What provide torque in first case and net force in second case.is it friction then how?
 
Physics news on Phys.org
akshay86 said:
is it friction then how?
Yes it is friction. It wouldn't happen on a frictionless surface.
 
A.T. said:
Yes it is friction. It wouldn't happen on a frictionless surface.
what is the diffrences in the both cases(direction of friction)?
 

Similar threads

High School Static friction needed for rolling without slipping
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Moment of Inertia about an axis and Torque about a point
  • · Replies 5 ·
Replies
5
Views
3K
High School Rolling of non-deforming sphere on a non-deforming rough surface?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Effects of External Torques on the Angular Momentum of Asymmetric Bodies
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad What is the Purpose of Torque?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Conservation of angular momentum in the iceskater example
  • · Replies 10 ·
Replies
10
Views
755
Undergrad Torque required from powered roller to rotate cylinder
  • · Replies 19 ·
Replies
19
Views
2K
Undergrad Conservation of Angular Momentum vs a gyro at the North Pole
  • · Replies 16 ·
Replies
16
Views
1K
High School The physics of flywheel launchers (like tennis ball shooters)
  • · Replies 60 ·
3
Replies
60
Views
6K
Undergrad Writing an equation for torque around an arbitrary point on a body
  • · Replies 6 ·
Replies
6
Views
1K