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September 21, 2014

September 21, 2014

Posted by **John** on Monday, October 3, 2011 at 1:21am.

- physics -
**Steve**, Monday, October 3, 2011 at 12:20pmThink about it. The speed of the gears' boundaries must match. Since A has a larger radius, it turns more slowly in rpm.

So, if A is 6Hz ccw, B is 12Hz cw.

The linear speed must match,or the teeth will strip!

A's speed is 2π(10)*6 = 120πcm/s

B's speed is the same: 2π(5)*12

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