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If two equal components (P) of a force (...

If two equal components (P) of a force (F) acting at an angle `120^@`, then F is

A

P

B

`Psqrt2`

C

2P

D

`P/2`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The moment of the force F acting at a point P, about the point C is

    A
    `FtimesCP`
    B
    `CP*F`
    C
    a vector having the same direction as F
    D
    `CPtimesF`

  • One of the two rectangular components of a force is 20 N and it makes an angle of 30^(@) with the force. The magnitude of the other component is

    A
    `10 //sqrt(3)`
    B
    `20// sqrt(3)`
    C
    `15 //sqrt(3)`
    D
    `40//sqrt(3)`

  • The X and Y components of a force F acting at 30^(@) to x-axis are respectively :

    A
    `(F)/(sqrt(2)), F`
    B
    `(F)/(2), (sqrt(3))/(2) F`
    C
    `(sqrt(3))/(2)F, (1)/(2)F`
    D
    `F,(F)/(sqrt(2))`

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