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When vec(A).vec(B)= -|A| |B|, then...

When `vec(A).vec(B)= -|A| |B|`, then

A

`vec(A) and vec(B)` are perpendicular to each other

B

`vec(A) and vec(B)` act in the same direction

C

`vec(A) and vec(B)` act in the opposite direction

D

`vec(A) and vec(B)` can act in any direction

Text Solution

Verified by Experts

The correct Answer is:
C
Since, `vec(A).vec(B)= AB cos theta= - |vec(A)| |vec(B)|`
`rArr cos 180^(@)= -1 rArr theta= 180^(@)`
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