Recent content by pleasantresult

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    A string over a pulley with two hoops wound like spools on each end

    Thank you. Great! I'm going to try that because that would make more sense to me, too.
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    A string over a pulley with two hoops wound like spools on each end

    Thank you for your response. So why does the solution I have seen for this problem look like it uses ½MR2? I don't think it makes sense to apply the parallel axis theorem in this situation. The hoops are rotating about their centers right? And applying the parallel axis theorem can only make...
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    A string over a pulley with two hoops wound like spools on each end

    Thank you for your response. I am sure about equation 1 because I have seen the solution and these four equations can be solved together to determine the correct expression for τ. I thought it made sense that the actual acceleration of the hoop would be the difference between the acceleration...
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    A string over a pulley with two hoops wound like spools on each end

    I have seen the solution to this problem but I don't understand it. Here is my drawing of the problem. Apparently I should do the sum of the forces and sum of the torques for both hoops like this: hoop 1: (1) τ - M1g = M1(a1t-a1R) (2) τR1 = ½M1R12a1r/R1 hoop 2: (3) M2g - τ = M2(a1t+a2r) (4)...