Average speed calculator

Average speed is a quantity that describes the average speed of an object's movement. It roughly indicates how fast an object moves over a period of time.

Average speed formula

Average speed: v_a = ½ (v₀ + v)
Initial speed: v₀ = 2xv_a - v
Speed: v = 2xv_a - v₀

I want to calculate
Initial speed (v₀) =		m/s
Speed (v) =		m/s
Average speed (v_a) =		m/s