Question
In Problems 59-64, write the vector $\mathbf{v}$ in the form a $+b \mathbf{j}$, given its magnitude $\|\mathbf{v}\|$ and the angle $\alpha$ it makes with the positive $x$-axis. $\|\mathbf{v}\|=14, \quad \alpha=120^{\circ}$
Step 1
We can use the following formulas: $v_x = \|\mathbf{v}\| \cos \alpha$ $v_y = \|\mathbf{v}\| \sin \alpha$ Plugging in the given values, we get: Show more…
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