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Two forces of equal magnitude F are at a...

Two forces of equal magnitude F are at a point. If `theta` is the angle between two forces then magnitude of the resultant forces will be

A

`2Fcos""(theta)/(2)`

B

`Fcos""(theta)/(2)`

C

`2Fcostheta`

D

`(F)/(2)cos""(theta)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • If the angle between two forces increases, the magnitude of their resultant

    A
    decreases
    B
    increases
    C
    remains unchanged
    D
    first decreases and then increases

  • 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^@`

  • The resultant of two forces P and Q makes an angle of 30^(@) with P. What is the angle between P and Q, if the magnitude of the resultant is equal to Q sqrt(3) ?

    A
    `30^(@)`
    B
    `45^(@)`
    C
    `60^(@)`
    D
    `75^(@)`

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