EM-1440

Position vectors

E Math · Secondary 3 · Medium · Position vectors

The position vector of A is

\vec{OA} = \mathbf{a}

. Point P lies on OA such that

OP : PA = 2 : 1

. What is

\vec{OP}

in terms of

\mathbf{a}

?

$\dfrac{2}{3}\mathbf{a}$
$\dfrac{1}{3}\mathbf{a}$
$\dfrac{3}{2}\mathbf{a}$
$\dfrac{1}{2}\mathbf{a}$

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