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Answer:
<em>The greatest pressure is 2178 Pa</em>
Explanation:
<u>Pressure</u>
It's the force applied perpendicular to the surface of an object per unit area over which the force is distributed.
If F is the force applied and A is the surface area, the pressure is calculated as:
The brick has dimensions of 25 cm by 9 cm by 5 cm. There are three possible areas of contact:
The brick has a mass of m=1000 g = 1 Kg and exerts a force equal to its weight when placed on a flat surface, thus:
F = m.g = 1 * 9.8 = 9.8 N
The greatest possible pressure will occur when the area is the least possible , since the pressure and the area are inversely proportional, thus:
The greatest pressure is 2178 Pa