Odpowiedzi

2009-12-02T21:19:39+01:00
Dane
m=3kg
s=60cm2=0,006m2
F=m*g=3kg*10m/s2=30N
p=F/s=30N/0,006m2=5000Pa=5kPa
3 3 3
2009-12-02T21:19:47+01:00
P = F/s
F = 30 N
s = 0,006 m²
P = 30 N / 0,006 m² = 5000 Pa = 5 kPa
2 3 2