A rectangular block has dimensions 1.5cm x 3.2cm x 3.9cm and a mass of 61g.

Question

Determine the density in SI units

My taking on the question,
Mass= 0.061kg
Volume= 0.1872m

Density=0.061kg/0.1872m=0.3258547kgm^-3

Can someone please tell me where I'm going wrong?

Answer 1

V = 0.015*0.032*0.039=1.872*10^-6 m^3.
Mass = 0.061 kg.

D = 6.1*10^-2kg/1.872*10^-6m^3
D = 3.26*10^4 = 32,600 kg/m^3.

Answer 2

61g/18.72m

equals 61000g/1872cm

32.585g/cm

changed to 3258.54 kg/m