Calculate the pressure exerted by a brick,which applies a force of 2.5 N, when (a) it is
placed upright on the soil, (b) when it is placed on its widest base.The dimensions of the
brick are 25 cmX1 cmX5cm
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Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid. ... In SI units, pressure is measured in pascals; one pascal equals one newton per square metre. Atmospheric pressure is close to 100,000 pascals.
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Since pressure=Force/Area
when it is placed upright its length and breadth will be 10 & 5 respectively
so area=10*5=50cm2=
0.005m2
Pressure=2.5N/0.005m2
=500N m-2
in case b it is placed on widest base i.e. 25cm
so area =25*10=2500cm2
=0.25m2
Pressure=2.5/0.25=10N m-2
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