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AP Physics 1
5.6 Newton’s Second Law in Rotational Form
5.4 Rotational Inertia
5.3 Torque
IntermediateMCQMathematicalConceptual13.2k
A circular solid disk with radius R and mass M. A horizontal axle is at the center. A string is wrapped around the top edge of the disk and pulled to the right with a horizontal force arrow labeled F. The disk is oriented in the vertical plane.
Force F applied to a string wrapped around a solid disk of mass M and radius R.
A uniform solid disk of mass \(M\) and radius \(R\) is mounted on a frictionless horizontal axle that passes through its center. A light string is wrapped around the outer edge of the disk, and a constant force of magnitude \(F\) is applied to the end of the string, as shown in the figure. The rotational inertia of a solid disk about its center is \(I = \dfrac{1}{2}MR^2\). Which of the following is a correct expression for the magnitude of the angular acceleration of the disk?

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