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Solve the prievious problem if the lead ...

Solve the prievious problem if the lead piece is fastened on the top surface of the block and the block is to float with its upper surface just dipping into water.

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`m_w=200g, rho_w=0.8gm/cc,
`rho_(pb)=11.3gm/cc`
`Again Mg=w`
`rarr (m_w+m_(pb))g=V_wxxrhoxxg`
[rho=density of water]
`rarr 200+m_(pb)=200/0.8x1`
`rarrm_(pb)=250-200=50gm`
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