Tension and Velocity: Physics Explained

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Discussion Overview

The discussion centers around the physics of tension in a string with an attached weight, particularly when the string gains velocity and moves horizontally. Participants explore the relationship between tension, velocity, and the potential for the string to snap, touching on concepts such as centripetal acceleration and forces acting on the string.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant states that the tension in the string is equal to the mass times gravity when hanging vertically, but questions how velocity affects this tension.
  • Another participant asserts that the string will most likely snap under these conditions, suggesting a real-world test could clarify the situation.
  • A different participant expresses a lack of resources to conduct experiments but acknowledges the phenomenon occurs without fully understanding the underlying reasons.
  • One participant asks about the path of the object when swinging and introduces the concept of centripetal acceleration as relevant to the discussion.
  • Another participant suggests that the forces acting on the string, including friction and centripetal acceleration, contribute to the string snapping.

Areas of Agreement / Disagreement

Participants do not reach a consensus; there are multiple competing views regarding the effects of velocity on tension and the conditions under which the string may snap.

Contextual Notes

Participants express uncertainty about the specific mechanics involved, including the role of centripetal acceleration and the forces acting on the string. There are also limitations in terms of practical experimentation due to lack of resources.

TimeInquirer
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Hello, I was recently reading a physics book and was told that, if a string were to hang down with a weight attached to it, its tension would be the mass times gravity. However, if it were to gain some velocity and move from left to right, the tension would increase enough so that the string would be cut. The book doesn't go into further detail. Does the force of the velocity oppose the string? Can someone please explain this to me, possibility showing equations to describe this motion? Thanks
 
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The string will most likely snap. How come you do not do a real world test?
 
I have watched a few videos, and I lack the sufficient material to produce adequate results (a.k.a poor strings and lack of a weight). I understand that it does happen but not sure why.
 
What is the path of the object when it is swinging? What do you know about centripetal acceleration?
 
It's all about the force going into the string and force going out towards the book.
That will result a friction and centripetal acceleration that makes the string snap. ;)
 

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