3 Solve the following: - Calculate the force applied on an area of 80 m² to produce a pressure of 2000 Pa. Find the area of a box weighing 180 N producing pressure of 10 Pa. . A wooden block of dimension 80 m x 20 m is placed on a table. Calculate the pressure when the thrust is 8000 N. 5. A measuring cylinder contains water up to the level 30 ml. when a stone of mass 60 g is lowered into it, the water level rises to 35 ml. find the density of the stone.
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The force applied on an area is the product of pressure and the area.
Here the area is 80 m2, and the pressure is 2000 pa.
Thus, the force applied on the area would be 80 * 2000 N, that is 160000 N.
Force is measured in Newtons, and area is measured in square metres.
Thus, pressure is measured in newtons per square metre, which is the unit called Pascals
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