Question

A body of volume 50cm³ is immersed in water. Find the force of buoyancy acting on it.

Answer 1

Hello,

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 = 50 cm³

g = 981 cm/s²

ρ = 1 g/cm³

F_b = 1*50*981

= 49050 dyne

= 0.49 N