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AP Physics 1
5.6 Newton’s Second Law in Rotational Form
5.1 Rotational Kinematics
2.9 Circular Motion
2.7 Kinetic and Static Friction
2.2 Forces and Free-Body Diagrams
Multi-Unit
IntermediateFRQDrawing RepresentationsGraphicalMathematicalConceptual25.3k
Figure 1. A block resting on a rotating disk.
Figure 1. A block resting on a rotating disk.
A solid disk of rotational inertia \(I_D\) is mounted on a fixed, frictionless, vertical axle. The disk is initially at rest. At time \(t = 0\), a motor is turned on and applies a constant net torque \(\tau_0\) to the disk.

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