Page 40 - Pressure 10 class

Force Acting on an immersed Body

➢ When a body is immersed in a liquid, it is acted upon by two forces. They are;

I. The weight of the body ‘ W’ acting downwards.

II. The upthrust due to the liquid ‘U’ acting vertically upwards.

➢ Conditions for floatation of a body in liquid;

a) When the weight of the body is greater than upthrust; ( W > U) ; the body sinks in the
liquid.

b) When the weight of the body is equal to the upthrust; W = U ; the body floats freely.

c) When the weight of the body is less than the upthrust; W < U ; the body floats in the
condition of being partially immersed.

July 30, 2020 Taranath Baral/GC Shiba/Suraj Thapaliya 40