(1)v=abh=6m*1m*2.6m=15.6m³
m=ρv=10的3次方m³*15.6m³=15.6*10³kg
F=G=mg=15.6*10³kg*9.8kg/m³=152.88*10³N
P=F/S=152.88*10³N/（6*1）m²=25.48*10³pa
(2)v=abh=6m*1.7m*1.7m=17.34m³
m=ρv=10³m³*17.34m³=17.34*10³kg
F=G=mg=17.34*10³kg*9.8kg/m³=169.932*10³N
P=F/S=169.932*10³N/（6*1.7）m²=16.66*10³pa