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A wooden cone of mass 8.8 kg floats with its apex downwards in a liquid of RD 0.8.If the RD of wood is 0.5,what mass of steel of RD 7.8 suspended from the apex of the cone by a chord that will just be able to submerge the cone?

1)2.94kg 2)8.82kg 3)5.88kg 4)1.764kg

Pratyush Gupta , 14 Years ago
Grade 12
anser 1 Answers
Chetan Mandayam Nayakar

Last Activity: 14 Years ago

8.8(0.8/0.5)g+ m(0.8/7.8)g=8.8g +mg, solving for m, one obtains m=5.88kg

I am unable to present a detailed solution as I am ill. If you want explanation, please ask me. 

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