Atwood Machine Help: Problem 1 Harvard

AI Thread Summary
The discussion revolves around a physics problem related to an Atwood machine from a Harvard homework assignment. The main equation referenced is f=ma, alongside the principle of string conservation. The user expresses confusion about the relationship between the tension in the strings and the overall setup of the problem. They seek assistance in understanding how to approach the solution effectively. Clarification on the specific question is also requested for better guidance.
coppersauce
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Homework Statement



http://isites.harvard.edu/fs/docs/icb.topic725237.files/problemset3_2010.pdf (Problem 1)

Homework Equations



f=ma, string conservation

The Attempt at a Solution



I'm not really sure how to do this. I know that the t of the string on the left is equal to the two strings in the middle, and... I'm just kinda confused... Any help?
 
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the question is not shown(i need to have an id ) .. can you write your question here ..
 
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Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
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