1. Scalars versus Vectors

2. Graphical Representation

3. Mathematical Representation

4. Vector Components

5. Unit Vectors

Perfect. Whenever \(\theta\) is the angle a vector makes with the +x-axis, its x-component is always determined by \(\mathrm{cos} \, \theta\).

What is the value of \(A_y\), the y-component of vector A?

\(8\)

\(8 \, \mathrm{sin} \,40^{\circ}\)

\(8 \, \mathrm{cos} \,40^{\circ}\)

\(4\)