Question

A rectangular piece of wood measures 2.4 m by 60 cm by 80cm and has a mass of 32.5kg.

What is the density of the piece of wood?
( nearest 3 decimal places)​

Answer 1

0.282kg/m3

Explanation:

density=mass/volume

mass=32.5kg

volume=lxbxh

volume=2.4mx60cmx80cm

convert 60cm and 80cm to m:

60cm=6m

80cm=8m

volume= 2.4mx6mx8m

volume=115.2m3

density=32.5/115.2m3

density=0.28211kg/m3

round to nearest three decimal places:

= 0.282kg/m3