Question

A rubber balls floats on water its1/3rd volume outside water.What is the density of rubber?​

Answer 1

✧Answer :-

➝Given :-

A rubber balls floats on water its1/3rd volume outside water.

➝To Find :-

What is the density of rubber ?!

➝Solution :-

Let the Volume Of the ball be V

Volume Of water above the surface of the water =

$v \times \frac{1}{3}$

∵ Volume of ball Immersed in water =

$v - v \frac{1}{3} = \frac{2}{3} v$

By the Principal of Floatation ,

•Volume Of Rubber Ball Immersed = Density of Rubber

• Total Volume Of Rubber Ball = Density of Water

Or

$\frac{2}{3} = \frac{density \: of \: rubber}{1000}$

Or Density Of Rubber Ball =

$1000 \times \frac{2}{3} = 666.7 {kgm}^{3}$