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The outside edge of a spinning compact disc is moving at a higher velocity than an inside track on the disc. Is this true or false?

User YaFred
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1 Answer

4 votes

ANSWER:

True

Explanation:

We have that the speed of a particle in circular motion is given by the equation:


v=r\omega

Where r is the distance from the point to the center of rotation, therefore the greater the distance, the speed is greater, which means that the outer edge moves at a higher speed than the rest of the disk.

Therefore, the statement is true.

User Jason Congerton
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4.9k points