Question

the dimension of metallic cuboid are 30 cm 20 CM 15 cm and its mass is 30 kg is acceleration due to gravity is equal to 10 M per second square calculate the maximum and minimum pressure exerted by cuboid

Answer 1

force=ma

30*10=300N

pressure=force/area

maximum pressure will be at the side with the smallest area because pressure is inversely propotional to area and vice versa

the smallest area of the cuboid will therefore be 15*20=300cm^2

and the largest area will be 30*20=600cm^2

and note that the area has to be converted to m^2 so 300cm^2/10000=0.03

and 600/10000=0.06

maximum pressure will be 300/0.03=1000N/M^2

minimum pressure will be 300/0.06=500N/m^2