P水=pgh=1000kg/m3x10n/kgx0.1m=1000pa
G水=mg=pvg=1000m3x200x10x10-6x10n/kg=20n
G杯水=G水+G容=1kgx10n/kg+20n=30n
P容=F/S=30/2x10-2=1500pa
P水=pgh=1000kg/m3x10n/kgx0.1m=1000pa
G水=mg=pvg=1000m3x200x10x10-6x10n/kg=20n
G杯水=G水+G容=1kgx10n/kg+20n=30n
P容=F/S=30/2x10-2=1500pa