- #1
risecolt
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I assume that the equation that applies for this problem is M = mg * r.
The large gear is rigid while the small gear rotates about the axis which passes through the center of the large gear by rotating a motor. What is the momentum which is required to turn the motor?
I'm confused because I'm used to calculating the momentum of an object rotating about an axis, when the point of rotation is at the same location as the axis. But in my problem, the center of rotation and the center what is making it rotate is different. The gears are weigthless.
http://cognitivenetwork.yolasite.com/resources/Gear.png
The large gear is rigid while the small gear rotates about the axis which passes through the center of the large gear by rotating a motor. What is the momentum which is required to turn the motor?
I'm confused because I'm used to calculating the momentum of an object rotating about an axis, when the point of rotation is at the same location as the axis. But in my problem, the center of rotation and the center what is making it rotate is different. The gears are weigthless.
http://cognitivenetwork.yolasite.com/resources/Gear.png
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