Imagine a girl of mass 50 kg standing on pencil heels, each of area of cross-section of 1 cm2 .Try to find pressure exerted by it. Assume acceleration due to gravity 10m/s2.
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Answer:
Total area = 2×1
=2cm2
pressure =F/A
= m×a/A in m2
= 50×10 × 100 ×100/2
= 2500000 N/m2
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