Recent content by Crappinni

Thanks for answering. I'm sure that's the case when both discs are spun the same way because of the torque couple. But when they are spun in opposite directions, why would they have a common axis?

Bump! Please help!

Hi, here's the question: A massless, rigid rod has motors attached on each end. The motors are each connected to a massive disc, and the motors accelerate the discs in the directions indicated by the arrows. Due to the torque from the each motor on its disc and hence that on the rod and...