A cube 8.5 cm on each side has a mass of 0.65 kg. Will the cube float – InterviewSolution

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1.	A cube 8.5 cm on each side has a mass of 0.65 kg. Will the cube float or sink in water? Prove your answer.
Answer» Volume of the cube, `V=(8.5cm)^3=614cm^3=6144xx10^-6m^3` Weight of water displaced by the cube when fully immersed in water, `F_B=Vrhog=(614xx10^-6m^3)(10^3(kg)/(m^3))(9.8(m)/(s^2))=6N` Weight of the cube, `W=0.65kgwt=0.65xx9.8=6.37N` Since `WgtF_B`, The cube will sink.

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