Rotational Energy on a solid disk
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A uniform, solid disk with mass m and radius R is pivoted about a horizontal axis through its center. A small object of the same mass m is glued to the rim of the disk.
If the disk is released from rest with the small object at the end of a horizontal radius, find the angular speed when the small object is directly below the axis.
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Solution Summary
The solution calculates the angular speed and energy of a solid disk.
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Q. A uniform, solid disk with mass m and radius R is pivoted about a horizontal axis through its center. A small object of the same mass m is glued to the rim of the disk.
If the disk is released from rest with the small object at the end of a horizontal radius, find the angular speed when the small object is directly below the axis.
Answer:
Understanding of the problem and different ways of obtaining solution:
The above figures show an initial and the final position of the small mass m.
Consider some intermediate ...
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