What is the force distribution in a string wave?

Click For Summary

Discussion Overview

The discussion revolves around the force distribution in a string wave, focusing on how forces act at various points along the string during wave propagation. It includes theoretical considerations of tension and force components in the context of wave mechanics.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant notes that the forces at any point in the rope are tangential and suggests that opposing tangential forces must neutralize each other, raising the question of how force exists in the rope.
  • Another participant explains that the wave induces a rotation between successive points along the string, leading to a change in the vertical component of tension, which facilitates the up and down movement of string elements while maintaining horizontal equilibrium.
  • A later post references additional mathematical detail related to transverse waves in strings, indicating a deeper exploration of the topic.
  • One participant proposes that the tension on one side of a typical point is greater than on the other side, suggesting that the difference in forces has both vertical and horizontal components, with the vertical component contributing to oscillation and the horizontal component related to circular movement about neighboring points.

Areas of Agreement / Disagreement

Participants express differing views on the nature of force distribution in the string, with no consensus reached on the specific mechanics involved.

Contextual Notes

The discussion includes assumptions about the behavior of forces in a wave and the definitions of tension and force components, which may not be fully resolved.

hokhani
Messages
601
Reaction score
22
we know that the force at any point of the rope(in the wave position) is tangential.
however at a typical point we have two tangential force oppositely directed.
so they must neutralize each other.
how the force exists in the rope?
 
Physics news on Phys.org
The wave causes a rotation between successive points along the string.

So although the horizontal components of the tension cancel, the direction change from the rotation causes a change in the vertical component. It is this change which is the force which moves the elements of the string up and down, whilst maintaining horizontal equilibrium.

Hope this helps
 
thanks very much Studiot
 
in this case you mean that tention of string in one side of a typical point, is more than another side and
difference between forces has 2 component so that the y component is for oscillation
and the x component is for circular movement aboat the neighboring point!
could you guide me whether it is true or not?
 

Similar threads

  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 19 ·
Replies
19
Views
15K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 47 ·
2
Replies
47
Views
5K
  • · Replies 27 ·
Replies
27
Views
3K
  • · Replies 49 ·
2
Replies
49
Views
5K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K