Даноa=1.95mb=0.08mm=78kgP=?РешениеP=F/S = p1+p2F=mgp1=mg/abp2=mg/abP=2mg/ab=2*78*10/(1.95*0.08) = 10кПа
Дано
a=1.95m
b=0.08m
m=78kg
P=?
Решение
P=F/S = p1+p2
F=mg
p1=mg/ab
p2=mg/ab
P=2mg/ab=2*78*10/(1.95*0.08) = 10кПа