Newton's second law 3 pulley problem.

AI Thread Summary
The discussion focuses on solving a three-pulley problem using Newton's second law, where friction is absent and strings are massless. The equations of motion are established for each mass, leading to a system of equations that includes tension and acceleration. It is noted that the tension between the 2kg and 5kg masses remains constant due to the lack of friction. Participants emphasize the importance of showing work for assistance in solving the problem. The goal is to determine the tensions (T1, T2, T3) and the overall acceleration of the system.
travisdass123
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There is no friction and the strings are massless. Find Tension and acceleration.

3. The Attempt at a Solution

1. +T-m1g = m1a
2. m2g-2t= m2a
3. +T - m3g =m3a
4. 2a2 = a1+a3

g(-m1+m2-m3) + 2a2 = (m1 + m2 + m3)a + a1 + a2

-29.4 + 2a2 =11a +a1+ a2
 

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Show some work or we're not allowed to help you.
 
travisdass123 said:
There is no friction and the strings are massless. Find T1 T2 T3 and acceleration.

If there is no friction, then the tension in the string connecting the 2kg and 5kg masses should be constant throughout.
 
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