Question

A block of iron has dimensions 2 m X 1 m X 0.5 m. The density of iron is 7.8 g/cm³. Find the mass of the block.

Answer 1

Answer:

Mass = density × volume

= 7.8 × volume of block(cuboid)

= 7.8 × (2 × 1 × 0.5)

= 7.8 × 1

= 7.8

So, mass = 7.8 g

Answer 2

Answer:

Density=mass/volume

given mass=2*1*0.5 m³ = 1m³= 10⁶cm³

So,

Mass= D*V

M=(10⁶/7.8)

or M= 128205.12 g (Approx)

if asked in kg It will be 128 kg 205 gm

thank u❤️✌