Question

Calculate the pressure exerted by a body of mass 30 kg in SI unit,when it is placed on an area 30cm^2(g=10m/s^2

Answer 1

F= mg

F= 30*10

F= 300N

Now,

Pressure=F/A

P=300/30*10^-4

P=10^5 N/m^2

Answer 2

area= 30cm²

mass=30000g

force=m*10

300000 dyne

pressure=f/a

300000/30

10^4 dyne/cm²