Hi, I’m having a disagreement with someone and wondered if you could confirm this.
Say you have a rotating hoop, such as a flywheel rim. This rim has mass 100kg and circumference 100cm. At its rotational speed the sum of all radial forces is 200N.
My contention is that each cm of rim is contributing/experiencing 2N to/of the overall radial force.
His contention in the the above example would be that every point in this rim would be experiencing 200N radial force, irrespective of how small that point is. He thinks that because the tangential (hoop stress) force is the same at any point around the circumference, then radial force must also be the same at every point (ie 1cm of that rim would be experiencing 200N of radial force).
All of this is ignoring vector quantities, only looking at the radial (apparent) force acting away from the axis of rotation (within the non inertial reference frame).
Thanks!
If the physics checks out
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