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Planar Kinematics of a Rotating Disk: Velocity and Acceleration of a Point

Engineering Mechanics Dynamics · Engineering Mechanics — Dynamics: Planar Kinematics of a Rigid Body

Course: Engineering Mechanics Dynamics Book: Engineering Mechanics — Dynamics: Planar Kinematics of a Rigid Body

Question

A disk is originally rotating at $\omega_0 = 12$ rad/s. It is subjected to a constant angular acceleration of $\alpha = 20$ rad/s². Determine the magnitudes of the velocity and the normal and tangential components of acceleration of point $B$ when the disk has undergone 2 revolutions. Point $B$ is located at a radius $r_B = 0.4$ m from the center.

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