Acceleration of rising mass and tension in cord

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The discussion revolves around the dynamics of an Atwood machine involving two masses, M1 and M2, connected by a cord over a pulley. The initial calculations for tension and acceleration were incorrect due to neglecting the effects of the pulley and the angle of the slope. Participants emphasized the importance of drawing free body diagrams and correctly identifying the relationship between tensions in the ropes. The correct approach involves recognizing that the net force on the pulley leads to a relationship between the tensions, ultimately clarifying the calculations for acceleration and tension. The final consensus is that understanding the system's mechanics is crucial for accurate problem-solving.
  • #31
Ithilrandir said:
3. Resultant force = 2T1 - T2
4. If the pulley has negligible mass, F = ma shouldn't be calculable?
If 2T1 - T2=ma and m=0 then...?
 
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  • #32
2T1 = T2?
 
  • #33
Ithilrandir said:
2T1 = T2?
Yes!
 
  • #34
haruspex said:
Yes!
Thanks, I solved the answer. I was under the impression that the pulley accelerates with force = ma and trying to solve it abstractly that way.
 

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