A bug of mass 0.028 kg is at rest on the edge of a solid cylindrical...
A bug of mass 0.028 kg is at rest on the edge of a solid
cylindrical disk (M = 0.10 kg,R = 0.20 m) rotating in a horizontal
plane around the vertical axis through its center. The disk is
rotating at 12.0 rad/s. The bug crawls to the center of the
disk.
(a) What is the new angular velocity of the disk? 18.72
rad/s
(b)What is the change in the kinetic energy of the system?0.126
J
(c) If the bug crawls back to the outer edge of the disk, what is
the angular velocity of the disk then? 12 rad/s
(d) What is the new kinetic energy of the system ? 0.225 J
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