Tension same at both ends of the string?

  • Context: High School 
  • Thread starter Thread starter DarkBlitz
  • Start date Start date
  • Tags Tags
    String Tension
Click For Summary

Discussion Overview

The discussion revolves around the concept of tension in a string connecting multiple masses, specifically whether the tension is the same at both ends of the string when the masses are in different configurations. The scenario involves three blocks of different masses, with two on a table and one hanging off the side, and explores the implications of their arrangement on the tension in the connecting strings.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions whether the tension in the string between two blocks (m1 and m2) is equal when considering the tension from both ends of the string.
  • Another participant suggests that if the string is massless and connects two blocks directly, the tension would be the same throughout the string.
  • A later reply clarifies the arrangement of the masses, confirming that m1 and m2 are on the table and m3 is hanging, and reiterates the question about the tension experienced by m1 and m2.
  • It is proposed that if the description of the system is accurate, then the tension force due to the string connecting m1 and m2 is indeed the same on both masses.

Areas of Agreement / Disagreement

Participants appear to agree that if the string is massless and connects the blocks directly, the tension is the same. However, the initial question regarding the specific scenario and the arrangement of the masses introduces some uncertainty that is not fully resolved.

Contextual Notes

The discussion does not resolve the implications of different mass configurations on tension, nor does it address potential complexities introduced by the acceleration of the masses.

Who May Find This Useful

This discussion may be useful for students or individuals interested in understanding the principles of tension in strings, particularly in scenarios involving multiple masses and different configurations.

DarkBlitz
Messages
22
Reaction score
0
Hey, I have a question on if the tension on either end of a string is equal. For example, if there are 3 blocks of different mass, one hanging of the side of the table and two on the top of the table, will the tension on the string from m1 to m2 be the same as the tension from m2 to m1?
 
Physics news on Phys.org
DarkBlitz said:
Hey, I have a question on if the tension on either end of a string is equal. For example, if there are 3 blocks of different mass, one hanging of the side of the table and two on the top of the table, will the tension on the string from m1 to m2 be the same as the tension from m2 to m1?
Not quite sure what you mean. If the string is massless, and the string connects two blocks without anything intervening, then yes, the tension is the same throughout.

What's the exact scenario? Describe it more clearly.
 
ok, sorry, there are 3 masses, m1, m2 ,m3, all different.
m1 and m2 are on a table top, and m3 is hanging freely of the side of the table. they are all connected and are accelerating.

my question is: is the tension at m1 due to m2 and m3 the same as the tension at m2 due to m1?
 
DarkBlitz said:
ok, sorry, there are 3 masses, m1, m2 ,m3, all different.
m1 and m2 are on a table top, and m3 is hanging freely of the side of the table. they are all connected and are accelerating.

my question is: is the tension at m1 due to m2 and m3 the same as the tension at m2 due to m1?
Is this an accurate description?:

m1 and m2, on the table top, are connected by a massless string; m2 is connected to hanging mass m3 by a massless string.

If so, then sure, the tension force due to the string connecting m1 and m2 is the same on both masses.
 
thanks!
 

Similar threads

Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 9 ·
Replies
9
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
21
Views
2K
  • · Replies 31 ·
2
Replies
31
Views
5K
Replies
46
Views
7K
  • · Replies 19 ·
Replies
19
Views
15K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 8 ·
Replies
8
Views
2K