What is the tension on a string wrapped around a pulley?

AI Thread Summary
The discussion focuses on determining the tension in a string wrapped around a pulley with two different masses. It is established that the tension on both sides of the pulley is equal, and the distance between the masses is deemed irrelevant for solving the problem. Participants agree that calculating the system's acceleration is necessary before addressing the tension. Clarification is provided regarding the significance of a measurement labeled as 24.8cm, which is ultimately considered unnecessary for the solution. The conversation emphasizes the importance of understanding the dynamics of the pulley system to find the correct tension.
uncletammy
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Homework Statement



[PLAIN]http://nicholascrumrine.net/otherpics/physics/HW4_6.jpg

Homework Equations



Sum(F)=MA

w=v/r

The Attempt at a Solution



My assumptions are as follows:
The sum of the tensions on the left side of the pulley is equal to the tension in right side of the pulley
The given distance between the 2kg and 10kg masses is irrelevant and not needed.

I feel like I need to solve for the acceleration of the system before I can work the first part of the problem. Also, I don't know what is being labeled as 24.8cm and whether it is relevant. Any help would be much appreciated. Thanks!
 
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uncletammy said:
My assumptions are as follows:
The sum of the tensions on the left side of the pulley is equal to the tension in right side of the pulley
No, that's not correct. (Why the sum?)
The given distance between the 2kg and 10kg masses is irrelevant and not needed.
Good.
I feel like I need to solve for the acceleration of the system before I can work the first part of the problem.
Sounds good to me.
Also, I don't know what is being labeled as 24.8cm and whether it is relevant.
Good question. Looks like this same diagram might correspond to several problems. Ignore that bit of data.
 

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