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Two concurrent equal forces of magnitude...

Two concurrent equal forces of magnitude 3 N each act at an angle `60^(@)` Then what is the magnitude of the resultant ?

A

`3`

B

`3 sqrt3`

C

`5`

D

`5 sqrt3`

Text Solution

Verified by Experts

The correct Answer is:
B
`R = sqrt ( A ^(2) + B ^(2) + 2 A B cos theta ) `
`= sqrt ((3) ^(2) + (3 )^(2) + 2 xx 3 xx 3 xx cos 60^(@)) = 3 sqrt3`
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