An elephant weighing 40,000 N stands on one foot of area 1000 cm² wheras a girl weighing 400N is standing on one heel of area 1 cm2.
what pressure is exerted on the ground by the elephant standing on one foot?
What pressure is exerted by the girl on the surface standing on one heel??

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Solution

Hello,
We know pressure = force/area
1.
Force due to the elephant = 40000 N
Area on the ground = 1000 cm²= 0.1 m²
Pressure due to the elephant = 40000/0.1 = 400000 Pa
2.
Force due to the girl = 400 N
Area on the ground = 1 cm²= .0001 m²
Pressure due to the girl = 4000000 Pa

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An elephant weighing 40,000 N stands on one foot of area 1000 $c m^{2}$ whereas a girl weighing 400 N is standing on one 'stiletto' heel of area 1 $c m^{2}$ .

(a) Which of the two, elephant or girl, exerts a larger force on the ground and by how much ?
(b) What pressure is exerted on the ground by the elephant standing on one foot ?
(c) What pressure is exerted on the ground by the girl standing on one heel ?
(d) Which of the two exerts larger pressure on the ground : elephant or girl ?
(e) What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant ?

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An elephant weighing 40,000 N stands on one foot of area 1000 cm2 wheras a girl weighing 400N is standing on one heel of area 1 cm2.what pressure is exerted on the ground by the elephant standing on one foot?What pressure is exerted by the girl on the surface standing on one heel??

Hello,We know pressure = force/area1.Force due to the elephant = 40000 NArea on the ground = 1000 cm2= 0.1 m2Pressure due to the elephant = 40000/0.1 = 400000 Pa2.Force due to the girl = 400 NArea on the ground = 1 cm2= .0001 m2Pressure due to the girl = 4000000 Pa

An elephant weighing 40,000 N stands on one foot of area 1000 cm² wheras a girl weighing 400N is standing on one heel of area 1 cm2.
what pressure is exerted on the ground by the elephant standing on one foot?
What pressure is exerted by the girl on the surface standing on one heel??

Hello,
We know pressure = force/area
1.
Force due to the elephant = 40000 N
Area on the ground = 1000 cm²= 0.1 m²
Pressure due to the elephant = 40000/0.1 = 400000 Pa
2.
Force due to the girl = 400 N
Area on the ground = 1 cm²= .0001 m²
Pressure due to the girl = 4000000 Pa