Question

9. A body of mass 70 kg, when completely immersed in
water, displaces 20,000 cm3 of water. Find : (i) the
weight of body in water and (ii) the relative density of
material of body.
Ans. (i) 50 kgf, (ii) 3.5
​

Answer 1

Explanation:

Mass of the body = 70kg = 70,000g

Volume of the body = 20,000cm

3

Density of the body =

Volume

Mass

=

20,000

70,000

=3.5g/cm

3

Relative Density =

Density

water

Density

object

=

1

3.5

=3.5