Rotational kinematics

angular displacement

the angle in radians through with a point or line has been rotated. the equivalent in kinematics is x (displacement)

what is the variable for angular displacement

θ is the variable. Δθ = θf - θi (change in theta = final theta minus initial theta)

angular velocity

rate at which the angle changes (angular displacement) over time. the kinematics equivalent is v (velocity)

angular velocity variable

ω is the variable. Δθ/Δt (change in angular displacement over time)

angular acceleration

change in angular velocity over time the kinematics equivalent is a (acceleration)

angular acceleration variable

α is the variable. α = ΔωΔt (radians per second, per second). if an object is rotating at a constant speed, acceleration = 0

what is torque

applied force a distance away from the center of mass (pivot point)

variable for torque