If the pressure of the two solid cubes on the horizontal ground is F1 and F2 respectively, then () A. F1 = f2b. F1 ＜ F2C. F1 ＞ F2D

If the pressure of the two solid cubes on the horizontal ground is F1 and F2 respectively, then () A. F1 = f2b. F1 ＜ F2C. F1 ＞ F2D

∵ two solid cubes are respectively placed on the horizontal ground, so the pressure on the ground is p = FS = GS = MGS = ρ VGS = ρ SHGs = ρ Hg; the pressure on the ground is equal; and because ρ 1 ＞ρ 2, so H2 ＞ H1, because it is a cube, so the contact area with the ground is S2 ＞ S1; so the pressure on the ground is f pressure = PS; the larger the contact area is, the greater the pressure on the ground is, so the bottom ground pressure F1 and F2 are smaller The size relation is F1 ＜ F2, so choose B