A solid body of 20cm^3 is completely immersed in water . Find the buoyant force acting on it .

Dear Student,

Force of buoyancy is given by

 F_b  = 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 = 20 cm³

 g  = 981 cm/s²

ρ = 1 g/cm³

F_b  = 1*20*981

 = 19620 dyne

 = 0.197 N





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