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.
Volume = 3m3
Mass = 9kg
Density of substance = 
= 
= 3kg/ m3
And density of water = 1000kg/ m3
The object will float in the water as the density of the object is less than the density of water.
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