Question 52:
Calculate the density of an object of volume 3 m3 and mass 9 kg. State whether this object will float or sink in water. Give reason for your answer.
Lakhmir Singh Physics Class 9
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Given : mass (m) = 9 kg and volume (V) = 3 m^3.
Therefore, density (d) = m/V = 9 kg / 3 m^3 = 3 kg/m^3.
The density of the object is 3 kg/m^3.
Since the density of water is 1 kg/m^3 and that of the object is 3 kg/m^3, the density of the object is greater than that of water. Hence, the object will sink.
Therefore, density (d) = m/V = 9 kg / 3 m^3 = 3 kg/m^3.
The density of the object is 3 kg/m^3.
Since the density of water is 1 kg/m^3 and that of the object is 3 kg/m^3, the density of the object is greater than that of water. Hence, the object will sink.
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