Question

Question 26 (b)
(b) A ball weighing 4 kg of density $4000kg{m}^{–3}$ is completely immersed in water of density ${10}^{3}kg{m}^{–3}$ Find the force of buoyancy on it. (Given $g=10m{s}^{–2})$.

Answer 1

Buoyant force = weight of the liquid displaced
= $\text{density of water}\times \text{volume of water displaced}\times \text{g}$
= ${10}^3\times \frac{4}{4000}\times 10$
= 10 N