Question

20 points!!!

A wooden board in the shape of a rectangular prism measures 1.5 meters by 0.75 meter by 0.2 meter and has a mass of 146.25 kilograms.

What is the density of the board?

Thank you so much!!!

Answer 1

Density of the board = M/V
`= 650 kg m^(-3)`

Explanation:

A rectangular prism has six faces which are all rectangular. It has a cross-sectional area with an additional length which makes it a six-sided solid object.

Mass of the board = 146.25 kg

height = 0.75 m

width = 0.2 m

length = 1.5 m

Volume of the rectangular prism = height * width * length

= 0.75*0.2*1.5

=0.225 meters

Density of the board = mass/volume

= 146.25/0.225

`= 650 kg m^(-3) \\`