nd 1 follo If the length, breadth and thickness of a wooden block with density 0.8 g/cm³ are 20 cm, 15 cm and 10 cm respectively and it is partially immersed in water with density 1 g/cm³, answer the following questions. Find the volume of wood. Calculate the mass of the block. 1) ii) How much water is displaced? Find the thickness of the block above the surface of water. iv)

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20-08-2022
Physics

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nd 1 follo If the length, breadth and thickness of a wooden block with density 0.8 g/cm³ are 20 cm, 15 cm and 10 cm respectively and it is partially immersed in water with density 1 g/cm³, answer the following questions. Find the volume of wood. Calculate the mass of the block. 1) ii) How much water is displaced? Find the thickness of the block above the surface of water. iv)

Answer :

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tripatsingh039 tripatsingh039 · Answer 1 · 2022-08-29T19:05:58-04:00

The mass of liquid that the wooden block will displace is 2400 g. and the thickness of the block is 0.8 cm

According to the floatation principle, the buoyant force acting on an object or body as it moves through a liquid is equal to the weight of the thing. The volume of the object submerged in the fluid is equal to the displaced volume of the fluid.

By principle of floation

Mass of wood=mass of liquid displaced.

Density of block=0.8 g/cm3

Volume of block= 20 x 15 x10=3000

mass of liquid displaced= density x volume

=0.8 x 3000

=2400 g

thickness of block= 2400/3000

=0.8 cm

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