Odpowiedzi

2010-04-07T16:06:21+02:00
M = 1050 kg
t = 15 s
V = 72 km/h = 72000 m/3600 s = 20 m/s
F = ?

F = m*a
a = V/t
F = m *V/t

F = 1050 kg * 20 m/s/15 s
F = 1400 N = 1,4 N

[N] = [kg*m/s^2]
2 5 2