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Two forces 3 N and 2 N are at an angle t...

Two forces 3 N and 2 N are at an angle `theta` such that the resultant is R . The first force is now increased to 6 N and the resultant become 2R. The value of `theta` is

A

`30^(@)`

B

`60^(@)`

C

`90^(@)`

D

`120^(@)`

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The correct Answer is:
D
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