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Two forces, each of magnitude F have a r...

Two forces, each of magnitude F have a resultant of the same magnitude F. The angle between the two forces is

A

`45^(@)`

B

`120^(@)`

C

`150^(@)`

D

`60^(@)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • If two forces are acting at a point such that the magnitude of each force is 2N and the magnitude of their resultant is also 2N, then the angle between the two forces is

    A
    `120^(@)`
    B
    `60^(@)`
    C
    `90^(@)`
    D
    `0^(@)`

  • 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))`

  • Two forces of magnitude 1 N and 13 N resultant of magnitude 6sqrt(5)N, then that is the angle between two forces.

    A
    `cos^(-1).1/13`
    B
    `cos^(-1).5/13`
    C
    `cos^(-1).13/5`
    D
    `cos^(-1).13/7`

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