1) A solid exerts pressure of 20 Pa on a surface of 2m2.Find its weight.
2) Relative density of an object is 1.35. Will it float or sink in water?
p = 20 pa
area = 2m sq.
= f = pxa = 20x2=40N
Weight = F = 40N
2. density of water = 1gm/cm cube
relative density of the object = 1.35 gm/cm cube
rel. density = density of object/density of water = 1.35/1
=density od object = 1.35gm/cm cube.
since density of object density of water, it will S
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