Question

Hii friends ....help me ...show steps...
The block of iron has dimensions 2m×0.5m×0.25m. The density of iron is 7.8g/m cube.
Fimd the mass of the block.

Answer 1

Hi...☺

Here is your answer...✌
================================

Given that,
density = 7.8g/m³

Volume of the block , V = L×B×H

= 2m×0.5m×0.25m

= 0.25m³

Now,

we know that,

density = mass/volume

=> Mass = density×volume

Mass = 7.8×0.25 = 1.95 g

Hence the mass of block is 1.95 g

Answer 2

Hey ^_^

We know that ,

Density = Mass /Volume

Volume of the block (cuboid) = l× b×h

Volume = 2× 0.5 × 0.25
========= 0.25

Therefore

◆ Mass = 7.8 × 0.25 { Mass = Density × Volume }

Mass = 1.95 gm

✌Hope this helps