Odpowiedzi

2009-12-21T12:41:33+01:00
M= 1500 kg
V = 54 km/h = 54000m/3600 s = 15 m/s
t = 30 s
F = ?

II zasada dynamiki: F = m * a ; ale a = V/t

F = m * V/t

jednostki:

F = 1500 * 15/30

F = 750 N

F = [kg * m/s/s ] = [ N]