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The square of the resultant of two force...

The square of the resultant of two forces 4N and 3 N exceeds the square of the resultant of the two forces by 12 when they are mutually perpendicular. The angle between the vectors is

A

`30^@`

B

`60^@`

C

`90^@`

D

`120^@`

Text Solution

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The correct Answer is:
B
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