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A block of bras of mass 0.5 kg and densi...

A block of bras of mass 0.5 kg and density `8xx10^(3)kg//m^(3)` is suspended from a string. What will be the tension in the string if the block is completely immersed in water? `(g=10ms^(-2))`

Text Solution

Verified by Experts

Volume of the block`V=0.5/(8xx10^(3))m^(3)`
upthrust due to water (Th)=`Vrho_(w)g`
`=0.5/(8xx10^(3))xx10^(3)xx10=5/8=0.625N`
The tension in the string `T=W-Th=mg-Th`
`=0.5xx10-0.625=4.375N`
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