Question

Calculate the pressure exerted by a cube which has 50 kg of weight, the side of cube is 5m

Answer 1

side of cube = 5 m
vol. = 5×5×5 m^3
area of base = 5×5 m^2
= 25 m^2

weigh = 50 kg.
gravity = 10 m/s^2
weight = m×a
= 50×10
=500 N.

pressure = Force / Area
= 500/25
= 20 Pa.

Answer 2

pressure = mass/volume
mass =50 kg
volume of a cube =5^3=125 cubic meter
pressure =50kg/125 cubic meter
=0.4kg/cubic meter