Question

is mass of a body is 90 kg and area is 30 cm cube find its density​

Answer 1

Explanation:

ρ =

m

V

=

90 kilogram

30 cubic centimeter

= 3 kilogram/cubic centimeter

= 3000000 kilogram/cubic meter

Answer 2

given area=30cm i.e. ,0.3m

6a2=0.3

a2=0.3/6

a=√(0.05)

now. volume=a3

vol=(√0.05)3

=0.05*0.05

=0.000025m3

now density=mass/volume

=90/0.000025

=3600000kg/m3