A 40 kg girl, wearing high heel shoes, balances on a single heel which is circular and has a diameter 10 mm. What is the pressure exerted by the heel on the floor?
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Answer:
The answer is 3538570.42 Pa
Answered by
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Answer:
1273885.35 Pa
Explanation:
Since, the girl wore the heel on only one leg so the pressure exerted will be on one leg only. So, the area which the heel covers is πR^2 where R is the radius of the heel. Where R=10/1000 = 0.01. So, the area will be 3.14*0.01^2 which will be 0.000314 m^2.
While the force exerted by the heel will be the mg or her own weight. So, 40*10=400N. Hence, the pressure will be P=F/A where A is the area of the heel and F is the force exerted by the heel. Hence, P=400/0.000314=1273885.35 Pa will be the pressure exerted by the heel on the floor.
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