Figure below shows the surface wind velocity as a function of the natural log of the

roughness length $($Z$).$ Plot a straight line and determine the roughness length $($Zo$)$ of

the terrain if measurement points are: $V1=2\mathrm{.}5\frac{m}{s}$ and $V2=3\mathrm{.}6\frac{m}{s}.$

Steps: Plot V$1$ and V$2$ and determine LN$($Z$1)$ and LN$($Z$2)$ and use equation $15$ from

lecture notes to get Zo$.(7\%)($show work$)$