Question

13)a) What do you mean by the term buoyancy?
b) A body weighs 100 N in air and 60 N in water. How much is the buoyancy?
c) If the same body floats in a liquid how much is its weight at that instance?

Answer 1

Answer:

1) when ever a object is immersed with in the water, the wet of tje object since to be decreased . that is becomes lighter.

2) this happen due to upward force acted by the water upon the object.

3) The property of water which pushes the object immersed with in it , towards upwords is called Buoyancy

please mark in brainleast.

Answer 2

Explanation:

whenever an object is immersed in a liquid , either partially or fully , an upward force is exerted on the object by the liquid, This upward force is called upthrust or buoyant force or force of buoyancy an the property of the fluid to which the upthrust is exerted on the object is called buoyancy.