# Samar weighing 60 kgf is wearing shoes with a heel of are of cross section 10 cm2, while Muskan weighing 36 kgf is wearing sandals with heel of area of cross section 1.2 cm2.(Take g = 10 m/s2) Calculate: (a) The pressure exerted on ground by their heels and (b) Compare the pressure when they stand on the heel of one foot.

$Pressureexertedbytheheeloftheboy\text{'}sheels,{P}_{1}=\frac{{F}_{1}}{{A}_{1}}=\frac{60\times 10N}{2\times 10\times {10}^{-4}{m}^{2}}=3\times {10}^{5}P\phantom{\rule{0ex}{0ex}}Pressureexertedbytheheelsofthegirl\text{'}sheels,{P}_{2}=\frac{{F}_{2}}{{A}_{2}}=\frac{36\times 10N}{2\times 1.2\times {10}^{-4}{m}^{2}}=15\times {10}^{5}P\phantom{\rule{0ex}{0ex}}\frac{{P}_{1}}{{P}_{2}}(Foronefeet)=\frac{6\times {10}^{5}}{30\times {10}^{5}}=\frac{1}{5}$

Regards

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