Asked by Angela

The plastic in a DVD disk will begin to deform at rotations faster than 10,000 revolutions per minute.

How many radians per second is that?

If the disk has a radius of 0.06 m, what is the centripetal acceleration at the edge?

Answers

Answered by drwls
To convert rpm to rad/s, multiply by
(2 pi rad/rev)*(1 min/60 s)
The Greek symbol omega (usually typed as w here) is usually used for rotation rates in radians per second.

Centripetal acceleration is R*w^2, where R is the radius.

You can do the numbers, I'm sure.
Answered by Angela
got it. thanks
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