Chapter 2, Problem 81AP

If the velocity vector of a polar bear is $\stackrel{\to }{\text{u}}=\left(\text{-18}\text{.0 <mover accent="true"> <mo> i </mo> <mo> ^ </mo> </mover> - 13}\text{.0 <mover accent="true"> <mo> j </mo> <mo> ^ </mo> </mover>}\right)\text{km/h}$ , how fast and in what geographic direction Is it heading? Here, and are directions to geographic east and north, respectively.