what is the magnitude of a force which produces a pressure 7,000 p a while acting on a surface of area of cross section of 0.25 metre square
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Pressure = force/ area
Therefore, area = force/ pressure
area = 300N / 1500 Pa = 1 / 5 sq.m
Now, 1m = 100cm.
Therefore, 100×100/5 = 2000 sq.cm
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