A box of mass 20 kg has a base of area 4 m2 . Calculate the pressure exerted by it on the ground. (Use 1
kg-f = 10 N)

First, find the force exerted by the box.

The required terms are :

Calculate the force : -

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Pressure can be calculated using this formula : -

The stated terms are :

Calculate the Pressure now : -

1/0.14nm = 10^10/1.4 a lot

temp rises, and expansion