Odpowiedź :
Odpowiedź
bok=5cm
S = 5cm *5cm = 25cm^{2}
m = 2kg
F = m*g = 2kg*10N/kg = 20N
p = F/S = 10N/25cm^{2} = 0.4 N/cm^{2} = 4000N/m^{2} = 4000 Pa
Odpowiedź
bok=5cm
S = 5cm *5cm = 25cm^{2}
m = 2kg
F = m*g = 2kg*10N/kg = 20N
p = F/S = 10N/25cm^{2} = 0.4 N/cm^{2} = 4000N/m^{2} = 4000 Pa