1.

A solid object of volume 250 cm3 is immersed.completely in water. Calculate the buoyant force.

Answer»

Force of buoyancy is given by

Fb = Weight of displaced water

= mg

= ρV g

where ρ = density of the water

V = volume of displaced water = volume of block (here)

g = acceleration due to gravity

Given that,

v= 250 cm^3

g = 981 cm/s2

ρ = 1 g/cm3= 245250dyneor 245250/100000= 2.45N



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