I want answer in Ncm².
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Answer:
case 1=0.098Ncm2
case 2= 0.392Ncm2
case 3= 0.196Ncm2
Explanation:
pressure = perpendicular force(or weight)/ area
force = 19.6 N. ( as 2kgf = 19.6 N)
case 1:
area= 10 × 20 = 200 cm2
pressure = 19.6/200
= 0.098 Ncm2
case 2:
area = 5×10 = 50 cm2
pressure = 19.6 / 50
= 0.392 Ncm2
case 3 :
area = 20 × 5 = 100 cm2
pressure = 19.6 / 100
= 0.196 Ncm2
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