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SoulInNeed
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1. There is a circular disk with a string wrapped around its center. We attached a mass to the string, and the force caused it to rotate. Now, the hypothetical question is "The hanging mass m is exerting a constant downward force of magnitude mg on our system. What would happen to the angular acceleration of our system if the hanging mass were removed and replaced by a constant downward force of equal magnitude, but with no associated mass?"
I=mr^2
sum of force=mg-T=ma
Homework Equations
Net Torque=IaI=mr^2
sum of force=mg-T=ma