A body of volume V and desnity `rho` is initially submerged in a non-viscous liquid of density `sigma (gt rho)`. If it is rises by itself through a height h in the liquid. Its kinetic energy willA. increase by h V `(sigma-rho)g`B. increase by hV`(rho+sigma)`gC. increase by `(hVrhog)/(sigma)`D. decrease be `(hVrhog)/(sigma)`

A body of volume V and desnity `rho` is initially submerged in a non-v

1.	A body of volume V and desnity `rho` is initially submerged in a non-viscous liquid of density `sigma (gt rho)`. If it is rises by itself through a height h in the liquid. Its kinetic energy willA. increase by h V `(sigma-rho)g`B. increase by hV`(rho+sigma)`gC. increase by `(hVrhog)/(sigma)`D. decrease be `(hVrhog)/(sigma)`
Answer» Correct Answer - A Work done by all the force W=change in kinetic energy two forces are acting, weight and upthrust. `therefore" "W=(sigma-rho)g(h/V)`

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