Question

The projection of $\overrightarrow{P}on\overrightarrow{Q}$ is

• A. $\overrightarrow{P}.\overrightarrow{Q}$
• B. $\overrightarrow{P}.\hat{Q}$
• C. $\overrightarrow{Q}.\overrightarrow{P}$
• D. $\hat{P}.\hat{Q}$

Answer 1

Answer: (B)

Projection of $\overrightarrow{P}$ on $\overrightarrow{Q}$ is P cos $\theta$, where $\theta$ is the angle between $\overrightarrow{P}$ and $\overrightarrow{Q}$ . Also, P cos $\theta =\overrightarrow{P}.\hat{Q}.$