Question 26 (b)
(b) A ball weighing 4 kg of density 4000 kgm–3 is completely immersed in water of density 103kgm–3 Find the force of buoyancy on it. (Given g=10ms–2).
Buoyant force = weight of the liquid displaced
= density of water×volume of water displaced×g
= 103×44000×10
= 10 N