A gorl weighing 50 kg standing on pencil heels having area of 1 cmsq and elephamt weighing 2000kg standing on his foot having area of 250 cmsq standing on the flopr . Which exerts more pressure ?(accelaration due to gravity is 10m/second sq.
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we know pressure= force/area
and force= weight= mg
1.
force due to the elephant= 2000kg×10m/s²
area on the ground 250cm²=0.025m²
pressure due to the elephant= 2000/0.025= 800000 Pa
2.
force due to the girl= 50kg×10m/s²= 500N
area on the ground= 1cm²= 0.001m2
pressure due to the girl= 500/0.001= 5000000 Pa
thus,
the girl exerts more pressure than elephant.
and force= weight= mg
1.
force due to the elephant= 2000kg×10m/s²
area on the ground 250cm²=0.025m²
pressure due to the elephant= 2000/0.025= 800000 Pa
2.
force due to the girl= 50kg×10m/s²= 500N
area on the ground= 1cm²= 0.001m2
pressure due to the girl= 500/0.001= 5000000 Pa
thus,
the girl exerts more pressure than elephant.
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