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Obliczamy przyspieszenie a:
Obliczamy siłę F:
m = 1500 kg
t = 30 s
v = 90 km/h = 25 m/s
v = at
a = v/t
a = 25 / 30 = 5/6 m/s^2 = 5/6 N/kg
F = ma
F = 1500 * 5/6 = 250 * 5 = 1250 N