Physics

Problem

A particle in the

xy

–plane has instantaneous velocity

\mathbf v = 3\,\text{i} + 4\,\text{j}\,\text{m s}^{-1}

. Determine its instantaneous speed. a)

7\,\text{m s}^{-1}

4.7\,\text{m s}^{-1}

5\,\text{m s}^{-1}

4\,\text{m s}^{-1}