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Posted by **Jessica** on Tuesday, April 5, 2011 at 9:47pm.

The rim speed is going to be the same.

I got the angular speed but I can't figure out why the rim speed is 4700 cm/min.

Please Help

- Radians -
**bobpursley**, Tuesday, April 5, 2011 at 10:04pmrim speed=angular speed*radius

rim speed=50rev/min*2PIrad/1rev*15cm

= 4700cm/min

- Radians -
**Jessica**, Tuesday, April 5, 2011 at 10:09pmwhere did you get the 2Plrad?

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