I am first learning about angular motion and came across this formula while doing a homework problem. Can anyone explain to me why ɪa = TR? That is the moment of inertia * angular acceleration = tension in rope * radius.
For reference, in the problem it's a stunt guy jumping off a building with rope tied around his waist connected to a cylindrical drum with rope wound around it.
I'm only interested in knowing why those two quantities equal each other. Thanks in advance!
torque = ɪ
torque = TR
ɪa = TR
The Attempt at a Solution
I already solved the problem, just need clarification.