Odpowiedzi

2010-01-14T15:05:21+01:00
T = 3s
F = 1000 N
m= 500 kg
V = ?
II zasada dynamiki: F = m*a ; ale a = V/t

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

V = 1000 N * 3 s/500 kg

V = 3000 N*s/500 kg
V = 6 m/s

jednostki:

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