P = F/S; F = mg = 0.5*10 = 5H; S = a^2 = 100см^2 = 0.01м^2
P = 5/0.01 = 500Па
P=F/S
F=m*g
F=0.5*10=5H
S=10^2=100см^2
P=5/0,01=500 Па
P = F/S; F = mg = 0.5*10 = 5H; S = a^2 = 100см^2 = 0.01м^2
P = 5/0.01 = 500Па
P=F/S
F=m*g
F=0.5*10=5H
S=10^2=100см^2
P=5/0,01=500 Па