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Homework Statement
A yo-yo consists of two cylinders with radius ##R##, mass ##M## and height ##H## connected by a smaller cylinder of radius ##r##, mass ##m## and height ##h##.
Determine the yo-yo's acceleration in ##z##-direction, using its moment of inertia.
Homework Equations
Moment of inertia of a solid cylinder: ##I=\frac12mr^2##
The Attempt at a Solution
The yo-yo's total moment of inertia is ##I_{\text{tot}}=\frac12mr^2+MR^2##, using the formula for solid cylinders. However, I don't know how to proceed from here.
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