to find the weight, you'll have the formula:
W = Unit weight × Volume
------------------
Since unit weight is given as 550lb/ft³ then we'll need to find the volume in cubic feet.
----------------
Volume = πr²h
[tex]V = \pi (0.125~in)^2( \frac{1ft}{12~in})^2(2mi)( \frac{1,609m}{1mi})( \frac{3.28ft}{1m}) \\ V=1.167ft^3 \\ --------------- \\ W = Unit Wt(Volume) \\ W = 550 \frac{lb}{ft^3}(1.167ft^3) \\ W = 641.85lb [/tex]
