An ichthyologist is modeling the movement of a fish in a 3D aquatic environment using vector dynamics. Suppose the fish's velocity vector is \(\mathbfv = eginpmatrix 2 \ -1 \ 3 \endpmatrix\) and the direction of the current is given by \(\mathbfc = eginpmatrix 1 \ 2 \ -1 \endpmatrix\). Find the component of the fish’s velocity perpendicular to the current direction. - Groen Casting