Question

An object of weight 5kgwt is fully immersed in water. The volume of water displaced is 50cc. If 1cc water weighs 1gwt, find out the loss of weight of a body when immersed in water.

Answer 1

$$\begin{gathered} buoyantforce=volumedisplaced\times densityofwatter\times g \\ =50\times {10}^{-6}\times 1000\times 10 \\ =0.5N \\ weightoftheobject=5kgwt=5\times 10=50N \\ lossofweight=buyantforce=0.5N=0.05kgwt \end{gathered}$$