Question

A cubed shaped block has a surface area of 9m2 and density of 0.5gcm-3.Its mass equals

Answer 1

Answer:

*Density ρ=0.5 g/cm

=500 kg/m 3

Length of the cube l= A

= 9

=3 m

Thus volume of cube V=lA=3×9=27 m 3

∴ Mass M=ρV=500×27=13500 kg