Question

An object weight 4 kg and density 4000kg/m3 is completely immersed in water of density 1000kg/m3 find the buoyant force on it?​

Answer 1

Mass of ball m = 4 kg Density of ball ρ = 4000 kg/m3 Volume of the ball V = m/ρ = 4/4000 m3 = 10-3 m3. Buoyant force or upthrust acting on the ball = Volume of water displaced x density of water x acceleration due to gravity = 10-3 m3 x 1000 kg/m3 x 9.8 m/s2 = 9.8 kg. m/s2 = 9.8 N.

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Answer 2

Answer:

buoynaty will be =mg

Explanation:

as the block will be in eqiblubrim in water so mg=buoyanty by fbd