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Old January 27, 2011, 10:05 AM   #15
Hardcase
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Join Date: April 14, 2009
Location: Sunny Southern Idaho
Posts: 1,909
Quote:
I would think torque would have to be opposite the twist.
You're right. Think of the action of the system if the bullet is fixed - the barrel must rotate in the opposite direction of the bullet's rotation.

Sort of like a bolt and a nut. The wrench exerts a clockwise torque on the bolt while the nut exerts a counterclockwise torque. When the bolt is snugged up, the torques balance out.

I still have nightmares about Statics and Dynamics.
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