Question

A man of weight 520 N is sitting on the chair whose sitting area is 200 cm2 , so find the pressure applied by the man on the sitting are of chair.

Answer 1

Dear Student,
Please find below the solution to the asked query:

Given , Force = 520 N
Area = 200 cm2 = 0.02 m2
Since, P = F/A = 520/0.02 = 260000 N/m2 = 26000 Pascal


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Answer 2

63kg + 3.5kg = 66.5kg total 1.2cm diameter = 0.6cm radius = 0.006m radius area = 0.00011304 m^2 each leg area total four chair legs = 0.00045216 m^2 P = F/A {(66.5)(9.81)} / 0.00045216 = 1442774.68 N/m^2 ...thus for one leg = 360693.67 N/m^2 answer of 3.6E5 and 3.61E5 incorrect. Answer unit =pa