question_answer

. A broad vessel with water stands on a smooth surface. The level of the water in the vessel is h. The vessel together with the water weighs G. The side wall of the vessel has at the bottom a plugged hole (with rounded edges) with an area A. At what coefficient of friction between the bottom and the surface will the vessel begin to move if the plug is removed?

A) \[\frac{\rho ghA}{G}\]

B) \[\frac{2\rho ghA}{G}\]

C) \[\frac{\rho ghA}{2G}\]

D) \[\frac{2\rho ghA}{3G}\]