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AP Physics C: Mechanics
5.6 Newton’s Second Law in Rotational Form
5.4 Rotational Inertia
AdvancedMCQMathematicalProportional AnalysisConceptual24.5k
Modified Atwood machine with a massive disk pulley.
Modified Atwood machine with a massive disk pulley.
A block of mass \(m_1\) rests on a frictionless horizontal tabletop and is connected by a light, non-stretching string to a suspended block of mass \(m_2\). The string passes over a uniform solid cylindrical pulley of mass \(M\) and radius \(R\) that rotates about a frictionless axle at its center without the string slipping. Let \(T_1\) denote the tension in the horizontal segment of the string attached to \(m_1\), and let \(T_2\) denote the tension in the vertical segment attached to \(m_2\). In the theoretical limit as the pulley mass approaches infinity (\(M \to \infty\)), which of the following correctly describes the values toward which \(T_1\) and \(T_2\) approach?

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