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The angle theta between directions of fo...

The angle `theta` between directions of forces `vecA and vecB` is `90^@` where A = 8 dyne and B = 6 dyne . If the resultant `vecR` makes an angle `alpha` with `vecA` then find the value of `'alpha'` ?

A

`47^@`

B

`27^@`

C

`37^@`

D

`12^@`

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The correct Answer is:
C
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