Physics - Fluid Question with Solution | TestHub

A cylindrical container of length $L$ is full to the brim with a liquid of mass density $\rho$. It stands on a weight scale reading $w$.
A light ball of volume $V$ and mass $m$ would float if released. It is gently pushed under the surface and held by a rigid rod of negligible volume, as shown at left. The alternative string arrangement is shown at right.