v = 90 km/h = 25 m/s
v = a * t --> a = v/t = (25 m/s)/(3 s) = 8.333 m/s^2
F = m * a = (1200 kg) * (8.333 m/s^2) = 10000 N
s = 1/2 *a * t^2 = 1/2 * (8.333 m/s^2) * (3 s)^2 = 37.50 m
