Question

Explain the triangle law of vector addition.

Answer 1

Triangle law of vector addition helps us find the sum of two vectors. Suppose you have two vectors $\overrightarrow{u}$ and $\overrightarrow{v}$. To find their sum, place the tail of $\overrightarrow{v}$ at the head of $\overrightarrow{u}$ as shown below:

Now construct a vector $\overrightarrow{OP}$ to complete the third side of the triangle OAP.

$\overrightarrow{OP}=\overrightarrow{u}+\overrightarrow{v}$
$\overrightarrow{OP}$ represents the sum of $\overrightarrow{u}$ and $\overrightarrow{v}$.