A checked torque and inertia produce angular acceleration. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Angular acceleration is torque divided by inertia
A torque of 12 newton meters acting on inertia 6 gives angular acceleration 2 per second squared.
α=12/6=2persecondsquared
The alpha claim cites its inputs
The alpha ledger stores 2 typed source references: torque and inertia.