Question

A woman having mass of 50 kg wearing a pointed heel of 0.1 cm2 would
apply a pressure on sand whereas, a woman having same mass wearing a heel
of 0.5 cm2 would also apply pressure on sand .
What do you think which lady can walk easily on sand?

Answer 1

Explanation:

Total Area of cross section of two heels = 2 cm

2

= 2×10

−4

m

2

as Pressure =

Area

Force

= mg/A =

2×10

−4

500

= 250×10

4

Pa

so option (B) is correct .

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