v = ṙ·er + r·θ̇·eθ     a = (r̈ − r·θ̇²)·er + (r·θ̈ + 2·ṙ·θ̇)·eθ

t 0.00 s

r = 0.00 m θ = 0° θ̇ = 0.00 rad/s vr = ṙ = 0.00 m/s vθ = r·θ̇ = 0.00 m/s
r̈ = 0.00 m/s² −r·θ̇² = 0.00 m/s² r·θ̈ = 0.00 m/s² 2·ṙ·θ̇ = 0.00 m/s²
ar = 0.00 m/s² aθ = 0.00 m/s²