Question

State the three cases of buoyant force,when it is greater than, smaller than or equal to W.
W= weight of the body. ​

Answer 1

Answer:

when :

buoyant force greater than W than body will floot on water.

buoyant force smaller than W than body will sink down.

and only in the special case buoyant force is equals to W

Answer 2

Answer:

When Weight of the body is less than the buoyant force :-

• The upthrust applied is more than than the weight, and hence, the body will float. Example-flotation of an air balloon in air.

When weight of the body is equal to the buoyant force :-

• The body neither sinks nor floats.

When weight of the body is more than the buoyant force :-

• The upthrust applied is less than the weight of the body, so it sinks. Example - an iron nail sinks in water.