3. Vectors

A uniform beam of length $l$ is supported at its ends. Where is the center of mass of the beam located along its length?

Which of the following best describes the difference between $\mathrm{magnetic} \mathrm{heading}$ and $\mathrm{magnetic} \mathrm{course}$ in navigation?

$\text{Which of the following is an example of a vector?}$

Which property of $vectors$ is most relevant when describing how having different fields of vision allows you to see as much of the road as possible?