Odpowiedzi

2010-03-23T14:48:12+01:00
S = 20 cm^2 = 0,002 m^2
p = 6000 Pa = 6000 N/m^2
F = ?

p = F/S
F = p *S
F = 6000 N/m^2 * 0,002 m^2
F = 12 N