(a) Why does a block of wood held underwater rise to the surface when released ? (b) An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it?

CBSE Class 9 CBSE Class 9 Science
1

(a) The buoyant force acting on the block of wood is more than its weight.
(ib) Buoyant force = 200 N.