Question

Projection vector of $\vec{a}$ on $\vec{b}$ is

• A. $\left(\frac{\vec{a}\times \vec{b}}{{|\vec{b}|}^2}\right)\vec{b}$
• B. $\frac{\vec{a}\cdot \vec{b}}{|\vec{b}|}$
• C. $\frac{\vec{a}\cdot \vec{b}}{|\vec{a}|}$
• D. $\left(\frac{\vec{a}\cdot \overrightarrow{b}}{{|\vec{b}|}^2}\right)\vec{b}$

Answer 1

Answer: (B)

Projection of $\vec{a}$ on $\vec{b}$ is $\frac{\vec{a}\cdot \vec{b}}{|\vec{b}|}$