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A cylinder wooden float whose base area ...

A cylinder wooden float whose base area `S=4000cm^(2)` & the altitude `H=50cm` drifts on the water surface specific weight of wood `d=0.8gf//cm^(3)`
(i). What work must be performed to take the float out of the water?
(ii). Compoute the work to be performed to submerged completely the float into the water.

Text Solution

Verified by Experts

The correct Answer is:
(i). `(d^(2)H^(2)S)/(2rhog)=32kgf-m`
(ii). `(1)/(2)SH^(2)(1-d^(2))=2Kgf-m`
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