Rotational Kinematics: Differentiate Down, Integrate Up

A disk spins up, and its angle, angular velocity, and angular acceleration form one calculus chain — ω = dθ/dt, α = dω/dt going down; integrate to run back up, each step carrying its starting value. The constant-α shortcuts are only the special case where α never changes.

8 STEPS · 6 QUICK CHECKS · v1