If the mass of an object is 4 kg while its volume is 20 #m^3#, what would its density be?

1 Answer
May 18, 2017

Answer:

#0.2(kg)/(m^3)#
or
#2 xx 10^(-4) g/(cm^3)#

Explanation:

The equation for density:

#rho = m/V#

Plug in known values, if your answer is in units of #(kg)/(m^3)#:

#rho = (4kg)/(20m^3) = 0.2(kg)/(m^3)#

A more conventional unit for density is #g/(cm^3)#. The conversion to this is:

#0.2(kg)/(m^3)((10^3g)/(1kg))((1m^3)/(100^3cm^3)) = 2 xx 10^(-4) g/(cm^3)#