question_answer 5)

A 50 kg girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter 1 cm. What is the pressure exerted by the heel on the horizontal floor?

Answer:

Here, \[m=\,50\,kg'\,r=D/2=\frac{1}{2}\,cm=\theta m\] Pressure \[=\theta ={{90}^{o}}\] i.e., \[1\cdot 0\times {{10}^{3}}kg{{m}^{-3}}\left( g=9\cdot 8m{{s}^{-2}} \right).\]