Question

A granite block is 30 cm on each side. If it has typical density of 2.8

g/cm3

, what is the weight of the block?​

Answer 1

Answer:

side 30 cm = 30 × 10^-2 m

Density = mass/volume

2.8 = m/ 30 × 30 x 30

m = 2.8 x 27 x 1000

= 75.6 x 1000g

= 75.6 kg

Weight = mg

= 75.6 x 10

so the weight of the block is 756kg