ABC is an equilateral triangle. Length of each side is a and centroid is point O . Find overri

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3-1.Vectors

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$ABC$ is an equilateral triangle. Length of each side is $a$ and centroid is point $O$. Find $\overrightarrow{A B}+\overrightarrow{B C}+\overrightarrow{C A}=.......$

A

$0$

B

$1$

C

$2$

D

$3$

Solution

$\overrightarrow{A B}, \overrightarrow{B C}$ and $\overrightarrow{C A}$ form a closed triangle in the same order.

$\therefore \overrightarrow{A B}+\overrightarrow{B C}+\overrightarrow{C A}=\overrightarrow{0}$

Standard 11

Physics

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