A Solid Uniform 3

question 73

Short Answer

A solid uniform 3.33-kg disk has thin string of negligible mass wrapped around its rim, with one end of the string tied to the ceiling, as shown in the figure. The disk is released from rest, and as it falls, it turns as the string unwraps. At the instant its center has fallen 2.25 m, (a) how fast is the center moving, and (b) how much rotational kinetic energy does the disk have?

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Definitions:

Central Canal

The cerebrospinal fluid-filled space that runs longitudinally through the length of the entire spinal cord.

External Ear

The outer parts of the ear, including the pinna and the ear canal, which collect and direct sound waves.

Elastic Cartilage

A type of cartilage that contains elastic fibers, providing flexibility and strength, found in the ear and epiglottis.

Intervertebral Discs

Cartilaginous pads located between the vertebrae in the spine, acting as shock absorbers and allowing flexibility.