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Two forces with equal magnitudes F act o...

Two forces with equal magnitudes F act on body and the magnitude of the resultant forces is `(F)/(3).` The angle between the two forces is

A

`cos^(-1)(-(17)/(18))`

B

`cos^(-1)(-(1)/(3))`

C

`cos^(-1)(-(2)/(3))`

D

`cos^(-1)(-(8)/(9))`

Text Solution

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The correct Answer is:
A
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