Question

a body of mass 70 kg when completely immersed in water displaces 20000 cm cube of water find the weight of body in water and the relative density of material of body

Answer 1

Relative density of the body will be 243.2 ......

Answer 2

$\huge\textbf{Answer :}$

Mass = 70 kg

Weight of water displaced = 2000 cm³

Means; Weight = 2000 cm³

$2×{10}^{-3}$ ${cm}^{3}$

Density of the substance = $\dfrac{70}{2 \times {10}^{-3}}$

= $35\:\times\:{10}^{3}$

Relative Density = 

$\dfrac{Density\:of\:substance}{Density\:of\:water}$

= $\dfrac{35 \times{10}^{3}}{{10}^{3}}$

Relative Density of material of the object is $\textbf{35}$