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## Homework Statement

Tire with a radius of 40cm spinning at 2500 rev/min. What is the rotational speed?

## Homework Equations

w=v/r

w=2500revmin/40cm

w=62.5 rad/sec

Does that sound right? I am confused

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- Thread starter zombie4000
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Tire with a radius of 40cm spinning at 2500 rev/min. What is the rotational speed?

w=v/r

w=2500revmin/40cm

w=62.5 rad/sec

Does that sound right? I am confused

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- #2

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Er... rev/min **is** a rotational speed.

Im not too sure what you are trying to work out.

Im not too sure what you are trying to work out.

- #3

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- #4

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That will find a linear velocity at the outer edge of that ball, not rotational.

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Thanks for the help!

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