Question

(a) Define buoyant force. Name two factors on which buoyant force depends.
(b) What is the cause of buoyant force ?
(c) When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? $(g=10m{s}^{-2})$

Answer 1

(a)
The upward force exerted on a body immersed in a fluid is called buoyant force.It depends on the density of the fluid and on the volume of the body immersed
(b)
The pressure difference on the lower part and upper part of a body carry a net upward pressure. Buoyant forcw=Net upward pressureArea

(c)
Buoyant force=wt of water displaced
60010=6000N