Angular Acceleration
Enter your known values, leave one input blank, and solves for the missing one. Try different units for next level excitement!
Learning zone
This is the rotational mirror of a = (v − v₀)/t. A hard-disk platter that spins up from rest to 7200 rpm (754 rad/s) in 4 s undergoes α ≈ 188 rad/s². The same four-variable structure as linear kinematics carries over completely — every uniform-acceleration trick you know works with θ, ω, α in place of x, v, a.
Angular Acceleration
Where
- = Angular acceleration
- = Final angular velocity
- = Initial angular velocity
- = Time
Missing one of these? Work it out first, then come back
- Angular acceleration — Angular Displacement (θ = ω₀t + ½αt²), Newton's Second Law for Rotation (τ = Iα)
- Final angular velocity — Angular Velocity (ω = θ/t), Angular Velocity from Period
- Initial angular velocity — Angular Displacement (θ = ω₀t + ½αt²), Angular Velocity (ω = θ/t)
- Time — Speed, Distance & Time, Final Velocity (Uniform Acceleration)