Question

(4) A metal block has dimensions 10 cm x 5 cm x 2 cm and the density of the metal is 8 x 10kg/ml. It is
kept on a table with the face 10 cm x 5 cm in contact with the table. Find the force and pressure exerted
by the block on the table. (9.8 m/s2)​

Answer 1

Explanation:

we know F=MA

A=9.8 GIVEN

we have to find M

we know Density=mass/volume

density = 80kg/ml

volume=lbh

=10*5*2=100cm³or0.0001m³

we know 1m³ =1000l

0.0001m³=0.1L or 100ml

mass=80kg/ml*100ml

=8000kg

F=8000*9.8

=784000N

As P=F/A

=784000/0.1*0.05

=15680000Pa