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What is the angle between a and -(3)/(2)...

What is the angle between a and `-(3)/(2) a`.

A

`180`

B

`0`

C

`120`

D

`150`

Text Solution

Verified by Experts

The correct Answer is:
A
`-(3)/(2)` a has a magnitude equal to `(3)/(2)` times the magnitude of a and its direction is opposite ot a. Therefore, a and `-(3)/(2)` a are antiparallel ot each other or angle between them is `180^@`
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