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If the position vectors of the points A ...

If the position vectors of the points A and B are `hati+3hatj-hatk and 3hati-hatj-3hatk`, then what will be the position vector of the mid-point of AB

A

`hati+2hatj-hatk`

B

`2hati+hatj-2hatk`

C

`2hati+hatj-hatk`

D

`hati+hatj-2hatk`

Text Solution

Verified by Experts

The correct Answer is:
B
`(3hati-hatj-3hatk+hatj+3hatj-hatk)/(2)=2hati+hatj-2hatk`.
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