Kleppner and Kolenkow - Pulleys

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SUMMARY

The discussion focuses on solving a physics problem involving two masses, M1 and M2, connected by massless strings and frictionless pulleys. The key conclusion is that the acceleration of M1 can be determined by analyzing the tensions in the strings, given that the pulley is massless and the net force acting on it must be zero. Participants emphasize the importance of applying Newton's laws to derive the correct acceleration formula for M1.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with concepts of tension in strings
  • Basic knowledge of kinematics
  • Experience with massless and frictionless systems in physics
NEXT STEPS
  • Review Newton's second law and its application to pulley systems
  • Study the concept of tension in massless strings
  • Explore kinematic equations related to acceleration
  • Practice solving problems involving multiple masses and pulleys
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Students studying physics, particularly those focusing on mechanics, as well as educators looking for examples of pulley systems in problem-solving contexts.

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Homework Statement



Masses M1 and M2 are connected to a system of strings and pulleys as shown. The strings are massless and inextensible, and the pulleys are massless and frictionless. Find the acceleration of M1.

http://img844.imageshack.us/img844/3758/cimg0572.jpg

Homework Equations



N/A

The Attempt at a Solution



I've reasoned that since the pulley is massless, the net force acting on it must be zero (otherwise the acceleration would be infinitely large). I could then use the tensions in the strings to arrive at an answer for the acceleration of M1, but I'm not sure that my reasoning really applies here. Could someone please offer some guidance?
 
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This was falling towards the bottom of the page, so I just wanted to bump it before it actually fell off.
 
Hi, did you ever get a solution or an approach to this problem? I am also working on the same one right now and am stuck on it...
 

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