Question

A stone of mass 1.4 kg raises the level of water from 200 ml to 900 ml. Find its density in SI unit​

Answer 1

Answer: 2kg/l or 2000kg/$m^{3}$

Explanation:

density = mass/volume

mass= 1.4kg

volume = 900ml-200ml=700ml

covert ml to l, 700ml = 700 x $10^{-3}$ = 0.7l

but $1m^{3}$ = 1000l

x= $\frac{0.7 x 1}{1000}$ = $7x10^{-4}$$m^{3}$

density = 1.4kg/7x$10^{-4}$

            =2000kg/$m^{3}$