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AP Physics 1
5.6 Newton’s Second Law in Rotational Form
5.4 Rotational Inertia
5.3 Torque
2.7 Kinetic and Static Friction
2.5 Newton’s Second Law
2.2 Forces and Free-Body Diagrams
Multi-Unit
IntermediateFRQDrawing RepresentationsMathematicalProportional AnalysisConceptual23.3k
Figure 1. Block 1 and Block 2 connected by a string over a massive pulley.
Figure 1. Block 1 and Block 2 connected by a string over a massive pulley.
Block 1 of mass \(m_1\) is placed on a rough horizontal tabletop with a coefficient of kinetic friction \(\mu_k\). A light, unstretchable string is attached to Block 1, passes over a pulley, and is attached to hanging Block 2 of mass \(m_2\). The pulley has a rotational inertia \(I\) and radius \(R\), and it rotates on a frictionless axle. The string does not slip on the pulley. The system is released from rest and Block 2 accelerates downward.

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