notwendige Startgeschwindigkeit 200 km / h = 66.67 m/s
Beschleunigungskraft = m * a = 50000 * 1.851 = 92550 N
neue Startsrecke s = 1200 * 1.5 = 1800 m
s = v ( ende ) / 2 * t
1800 = 66.67 / 2 * t
t = 54 sec
v = a * t
66.67 = a * 54
a = 1.2346 m/s^2
F = m * a
92550 N = m * 1.2346 m/s^2
m = 74966 kg