Solution of task 15.4.3 from the collection of Kepe OE

Solution of task 15.4.3 from the collection of Kepe OE

15.4.3
A homogeneous disk with a mass m = 30 kg of radius R = 1 m starts to rotate from the resting state uniformly with constant angular acceleration? = 2 rad / c2. Determine the kinetic energy of the disk at time t = 2 s after the start of the motion. (Answer 120)

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