Centripetal Force: Ball in Vertical Circle at Constant Speed

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Homework Help Overview

The discussion revolves around a ball being swung in a vertical circle at constant speed, focusing on the conditions under which the tension in the rope is at its maximum and minimum. Participants are exploring the forces acting on the ball at different points in the circle.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the position of the ball when the tension is at its maximum, with some indicating it is at the bottom of the circle. Questions arise about the forces acting on the ball at this position and how they contribute to the tension in the rope.

Discussion Status

The discussion is active, with participants providing insights into the forces involved, such as gravity and centripetal acceleration. There is an exploration of the relationship between these forces and the tension in the rope, with no explicit consensus reached yet.

Contextual Notes

Participants are considering the forces acting on the ball, including gravity and centripetal acceleration, while questioning whether other forces might be relevant to the scenario described.

eddyy08
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A ball is swung around in a vertical circle at constant speed. Where is the ball when the tension in the rope is at maximum / minimum?
I know where the ball is, how would I explain it?
 
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eddyy08 said:
A ball is swung around in a vertical circle at constant speed. Where is the ball when the tension in the rope is at maximum / minimum?
I know where the ball is, how would I explain it?

Welcome to PF.

So where is it at its maximum tension?
 
Thank you -
at maximum tension its at the bottom of the circle
 
eddyy08 said:
Thank you -
at maximum tension its at the bottom of the circle

And when you draw a picture at the bottom what forces are acting on the object that tend to make the tension maximum?
 
Force of gravity, centripetal acceleration toward the center of the circle, and probably something else
 
eddyy08 said:
Force of gravity, centripetal acceleration toward the center of the circle, and probably something else

The centripetal acceleration of the object is toward the center, but it's caused by the tension pulling up, making the object describe a circular path isn't it? What else is the tension pulling up for - weight? So those two together ...

Is there anything else that you think is acting on the object? I don't see it based on your statement of the problem.
 

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