Plz answer this immediately !
Answer is opt a or opt b ??? Plz provide soln too !! (Refer formula P=F/A, F=mg)
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F = 40 x 9.8
:. F = 392N
then
P = F/A
P = 392/ 0.001( 10 cm2 is 0.001m2)
P = 3.92 x 10^ 5Pa
:. F = 392N
then
P = F/A
P = 392/ 0.001( 10 cm2 is 0.001m2)
P = 3.92 x 10^ 5Pa
NChat:
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