Physics - Fluid Question with Solution | TestHub

A sphere of radius 10 cm and density $500\mathrm{kg}/{\mathrm{m}}^3$ is under water of density $1000\mathrm{kg}/{\mathrm{m}}^3$. The acceleration of the sphere is $9.80\mathrm{m}/{\mathrm{s}}^2$ upward. Viscosity of water is 1.0 centipoise. If $\mathrm{g}=9.81\mathrm{m}/{\mathrm{s}}^2$, the velocity of the sphere is :