Question

a girl of weight 40 kg F is wearing sandal with heel of area 2cm^2 . find pressure.(1kgF= 1kg×9.8m/sec^2)

Answer 1

weight of a girl = 40 kg

F = mg we

F = 40×10

   =400N

P = F/A

  = 400N/0.0002m^2

  =0.08N/m^2.

the pressure = 0.08n/m^ 2.