Pressure is defined as force per unit area. When an object rests on a surface, it exerts a force equal to its weight:
Weight = Mass × Gravity (9.81 m/s²)
The pressure depends on both the weight and the area of contact. A larger contact area results in lower pressure, while a smaller contact area creates higher pressure.
For a box, the contact area depends on which face touches the ground. For a cylinder standing on its flat circular base, the contact area is π × r².
Constant Density Physics:
All objects in this simulation have constant density, meaning their mass changes with volume according to:
Mass = Density × Volume
Volume of Box = Length × Width × Height
Volume of Cylinder = π × Radius² × Height
This simulates real objects made of consistent materials where bigger dimensions create more mass.