Question

marbles dropped into a partially filled bathtub sink to the bottom. part of their weight is supported by buoyant force, yet the downward force on the bottom of the tub increases by exactly the weight of the marbles. explain why.

Answer 1

Consider the sink too To under st and this lets ball and the water + bath tub two systems Buoyant ФЕ کی مما :ont force 4N Q F mg Mg Fig." On the marble the marble exerts on the water as red. figi Water exerts force (buoyant aut forces. In etern reaction face shown in The refore, the net force is almost equal to the we con write in fgo on ground cot of bath tub sink tmarble F = mg in fg N = Mg + Mg + mg that the force on ley the value img in we com So, the bottom weight of in we asco on arble