There is a monument with a mass of 10t standing on the foundation stone of a cuboid, as shown in the figure. The density of the foundation stone is 2 × 103kg / m3, and the design height is 1m. If the maximum pressure on the ground at the place where the monument is erected is 1.4 × 105Pa, what is the bottom area of the foundation stone? (take g = 1On / kg)

There is a monument with a mass of 10t standing on the foundation stone of a cuboid, as shown in the figure. The density of the foundation stone is 2 × 103kg / m3, and the design height is 1m. If the maximum pressure on the ground at the place where the monument is erected is 1.4 × 105Pa, what is the bottom area of the foundation stone? (take g = 1On / kg)

If the contact area between the foundation stone and the ground is s, the mass of the foundation stone is M1, and the mass of the monument is m2, then the pressure f = g = (M1 + m2) g = ρ (SH) G + m2g = PS; that is, 2 × 103kg / m3 × (s × 1m) × 10N / kg + 104kg × 10N / kg = 1.4 × 105Pa × s; therefore, s = 0.83m2. A: the bottom area of the foundation stone should be set as 0.83m2