Question

A cuboid of mass 2 kg and dimensions 3 cm x 5 cm x 20 cm. If g = 10 m/s2 , find the maximum pressure and minimum pressure exerted by this solid on the surface.

Answer 1

Minimum pressure exerted (when area is maximum) = 2× 10/ 0.2×0.05
= 20/0.010 = 2000 N/m²
Maximum pressure(when area is least) = 2×10/ 0.03×0.05 = 20/ 0.0015 = 200000/15 = 13333.33 N/m²