Question

Who exerts more pressure? a. A girl of 50 kg wearing heels with an area of cross section 1cm2 b. An elephant of 4000 kg with foot area of each 250 cm2​

Answer 1

Answer:

the girl

Explanation:

when area decreases pressure Increase

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Answer 2

Answer:

A girl of 50 kg wearing heels with an area of cross section 1 cm²

Explanation:

$pressure = \frac{force}{area}$

Pressure exerted by the girl —

$pressure = \frac{50}{ {1}^{ - 4} }$

$∴pressure = 500000 = 5 \times {10}^{5}$

Pressure exerted by the elephant —

$pressure = \frac{4000}{0.025} = \frac{4000}{25 \times {10}^{ - 3} }$

$∴pressure = 160 \times {10}^{3} = 1.6 \times {10}^{5}$

Comparing —

Clearly, the pressure exerted by the girl's heels is greater.

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