Equations & Angular Velocity for Rotational Forces

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SUMMARY

The discussion focuses on the need for resources that explain equations related to angular velocity and rotational forces, particularly in the context of a ball being spun on a string. Participants recommend websites such as HyperPhysics and the University of Winnipeg's resources for understanding these concepts. Key issues raised include the lack of familiarity with equations involving mass and the fundamental understanding of angular velocity. The discussion emphasizes the importance of grasping centripetal force and Newton's third law in relation to these dynamics.

PREREQUISITES
  • Understanding of angular velocity and its applications in physics
  • Familiarity with centripetal force and its role in rotational motion
  • Basic knowledge of Newton's laws of motion, particularly the third law
  • Ability to interpret and apply physics equations related to mass and force
NEXT STEPS
  • Explore the equations of motion for circular dynamics
  • Study the concept of centripetal acceleration and its calculations
  • Learn about the relationship between mass, tension, and angular velocity in rotational systems
  • Investigate online courses or tutorials specifically covering angular motion and forces
USEFUL FOR

Students studying physics, educators teaching rotational dynamics, and anyone seeking to deepen their understanding of angular velocity and related forces in mechanics.

johnny872005
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Ok guys, I am a bit confused on this.
Does anyone know a good site that has a list of equations for just this? (like angular velocity, etc?)
Or even better, a website that TEACHES it?

Like I seem to be running into 2 problems while doing this homework.
First of all, some questions are like "ball on string being rotated around, creating force of blah, what is the mass" etc, but I don't know any equations that have mass in them related to this.
The second issue is that I don't really understand angular velocity.

If anyone could please help me with my questions above, that'd be great.
thanks
 
Physics news on Phys.org
When the ball is being spun around the centripetal force that it experiences by the string pulling it (the tension in the string) towards the center of ratation (your hand), it (the ball) will pull just as hard back on the string (N3 action-reaction). This force is transmitted by the string to your hand. The string will therefore pull just as hard on your hand as the centripetal force it experiences.
 

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