question_answer

Figure shows three vectors \[\vec{a},\]\[\vec{b}\] & \[\vec{c}\]. If \[RQ=2\,PR,\] which of the following relations is correct?

A) \[2\vec{a}+\vec{c}=3\vec{b}\]             

B) \[\vec{a}+3\vec{c}=2\vec{b}\]

C) \[3\vec{a}+\vec{c}=2\vec{b}\]             

D) \[\vec{a}+2\vec{c}=3\vec{b}\]