In free fall motion, ππ = ππ + ππ; ππ = 1/2 (ππ β ππ)t; πππ = πππ + πgππ; ππ = πππ + π/ππ π2, where ππ = final position, ππ = initial position, π = time, ππ = displacement, π = initial velocity, π = final velocity.