A stone is attached to a spring balance and weighed in air

PHYSICS · Multi-part · CBSE · Physics · Gravitation · Gravitation

Problem

A stone is attached to a spring balance and weighed in air. The balance reads

4.9\,\text{N}

. The stone is then completely immersed in a measuring cylinder that initially contains

50\,\text{cm}^{3}

of water. The water level rises to

70\,\text{cm}^{3}

. Take the acceleration due to gravity

g=9.8\,\text{m\,s}^{-2}

. (i) Calculate the mass of the stone. (ii) Determine the volume of the stone. (iii) Hence find the density of the stone in

\text{kg\,m}^{-3}

and also in

\text{g\,cm}^{-3}