please solve it.......
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p = f / a
nail 1 , f = 1.5 n
a = 2 mm²
p = 15 * 100000000 / 2 * 10
7500000000 pa
nail 2, f =1.5 n
a = 6mm2
p = 15 * 100000000 / 6 * 10
= 2500000000pa
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