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The magnitude of resultant of two equal ...

The magnitude of resultant of two equal forces is double the magnitude of either of forces, The angle between them is

A

`30^(@)`

B

`60^(@)`

C

`120^(@)`

D

`150^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
`|vec(A).vec(B)|=AB|cos theta|=8`,
`|vec(A)xxvec(B)|=AB|sin theta|=8 sqrt(3)`
`rArr |tan theta|=(8sqrt(3))/8=sqrt(3) rArr theta=60^(@), 120^(@)`
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