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?
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.
(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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