The position vector of mid-point lying on the line joining the points whose positions vectors are and is?
Explanation for the correct option:
Find the position vector of the required mid-point
In the question, the position vector and of two-point is given.
Since It is required to find the position vector of the mid-point of the line formed by joining the given points.
So, the mid-point of the line is also the mid-point of the given points.
Therefore, the required position vector is given by:
Therefore, The position vector of the mid-point lying on the line joining the points whose positions vectors are and is .
Hence, option , is the correct answer.