<PRE><B>Question 846024</B>
Volume = l * w * h = 6.0 * 4.5 * 3.0 = 81 cubic meters
Density = m / V     where m is mass and V is volume
Weight = m * g  where m is mass and g is force of gravity, g is 9.8 m/s^2
note that a metric ton is 1,000 kg, so 4 metric tons is 4,000 kg
4000 = m * 9.8
m = 4000 / 9.8 = 408.2 kg
now we can us the density equation
Density = 408.2 / 81 = 5.04 kg/m^3

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