Mathematics

Problem

Consider two non-zero vectors

\vec{p}

and

\vec{q}

acting at a point. a. (i) State the triangle law of vector addition. b. (ii) With the help of a labelled diagram, explain how the parallelogram law gives the same resultant as the triangle law for

\vec{p}

and

\vec{q}

. c. (iii) Using the above laws, justify why vector addition is commutative, that is, why

\vec{p}+\vec{q}=\vec{q}+\vec{p}

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