Physics, asked by jyotiprajapati3214, 1 month ago

A boy weighing 60kg force is wearing shoes with heel area of cross - section 20cm^2 while a girl weighing 45kg force is wearing shoes with heel of area of cross- section 1.5cm^2. compare to the pressures exerted on the ground by their heels when they stand on the heels of one foot .​

Answers

Answered by bharat1234567819
2

Explanation:

Pressure exerted by girl P

girl

=

Area

F

girl

=

1

50×10

=500 N/cm

2

Pressure exerted by elephant P

elephant

=

Area

F

elephant

=

25

2000×10

=800 N/cm

2

So,

P

elephant

P

girl

=

8

5

Answered by shivammauryahrc
2

Answer:

Explanation:

Pressure = Force / Area

Now Force = mgh where m is mass h is height and g is gravity. Since both girl and boy have same height 1 foot and g is constant.

=> Force is directly proportional to mass

And P = F / A

=> P for Boy equivalent to = 60 kg / 20 cm^2 = 30

=> Equivalent P for girl = 45 kg / 1.5 cm^2 = 30

=> Pressure applied by girl on ground is higher than boy.

Note: Pressure calculations are not exact because we didn't put value of gravity constant also height and area is to be use in SI unit.

Thank you!

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