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Mechanical Properties of Fluids

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Question : 5
Total: 31
A 50 kg girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter 1.0 cm. What is the pressure exerted by the heel on the horizontal floor?
Solution:  
Here, m=50 kg;
r=
D
2
=
1
2
cm=
1
200
 m
Pressure =
force
area
=
mg
πr2

=
50×9.8
(
22
7
)×(
1
200
)2

=6.24×106 Nm−2.
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