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A 50 kg girl wearing high heel shoes bal...

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 ?

Text Solution

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We are given: Mass of girl (m) = 50 kg
Force on the heel
`F=mg=50xx9.8=490N`
Diameter, `D=1.0cm=1xx10^(-2)m`
We are to calculate: Pressure, P,
We know that, area `A=(piD^(2))/(4)=(3.14xx(1xx10^(-2))^(2))/(4)=7.85xx10^(-5)m^(2)`.
Using relation,
Pressure, `P=(F)/(A)=(490)/(7.85xx10^(-5))=6.24xx10^(6)Pa`.
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