Question

A body weighs 60 kg and is wearing shoes of 20 cm2 as its sole's area . Find the pressure exerted on the ground.

Answer 1

as we know that P=F/A
                                     
                                     F=Mg=60x10=600N
                                      A(area)=20x.0001m^2
                                                  =.002m^2
                                                  
                                         P=600/.002 pas
                                            =3x10^5

Answer 2

Mass , m =60 kg

g = 10 m/s²

Force = mg

= 60 × 10

= 600 N

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1m² = 10000 cm²

Area of the shoe sole = 20 cm² = 0.002 m²

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Pressure = Force ÷ Area

= 600 ÷ 0.002

= 300000 Pa

Pressure exerted on the ground = 300000 Pa