Is the Tension Force in an Atwood Machine Only Transmitted Between Blocks?

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SUMMARY

The discussion centers on the role of tension in an Atwood machine, specifically addressing a student's claim that the string only transmits forces between blocks. The consensus is that the student is incorrect; tension does not merely transmit weight but also holds the blocks together, creating a dynamic interaction between their forces. The equation Tension = mg + ma is pivotal in understanding this relationship, as it illustrates how tension is influenced by both the gravitational force and the acceleration of the blocks.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concept of tension in physics
  • Knowledge of Atwood machine mechanics
  • Basic proficiency in solving equations involving forces
NEXT STEPS
  • Study the dynamics of Atwood machines in detail
  • Learn about the derivation and application of the tension equation Tension = mg + ma
  • Explore the effects of varying masses on tension and acceleration in systems
  • Investigate real-world applications of tension in mechanical systems
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the principles of tension and force interactions in mechanical systems.

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Homework Statement


When talking about an Atwood machine, a student states:
"All strings can do is transmit forces from other objects. That means that the string in the Atwood's machine just transmits the weight of one block to the other."
Is the student correct or incorrect? Why?

Homework Equations


Tension = mg + ma

The Attempt at a Solution


This is how it is making sense in my mind, but correct me if I'm wrong.
I am thinking that the student is incorrect, because the tension force on the string holds objects together. The weight of one block isn't transmitted from one block to another, but the forces on the blocks are a result of one another through the string.
 
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I think I could argue either way... but it reads like you've said the same thing as "the student", but in different words.
 

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