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For a particle rotating in a vertical ci...

For a particle rotating in a vertical circle with uniform speed, the maximum and minimum tension in the string are in the ratio 5 : 3. If the radius of vertical circle is 2 m, the speed of revolving body is (`g=10m//s^(2)`)

A

`sqrt(5)m//s`

B

`4sqrt(5)m//s`

C

5 m/s

D

10 m/s

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • A particle of mass m is rotated in a vertical circle by means of a string . The differnce in the tensions in the string at the bottom and the top of the circle would be

    A
    2 mg
    B
    3 mg
    C
    4mg
    D
    6 mg

  • The maximum and minimum tension in the string whirling in a circle of radius 2.5 m with constant velocity are in the ratio 5:3 then its velocity is

    A
    `10(m)/(s)`
    B
    `7(m)/(s)`
    C
    `15(m)/(s)`
    D
    `5(m)/(s)`

  • A stone tied to a rope is rotated in a vertical circle with uniform speed. If the difference between the maximum and minimum tensions in the rope is 20 N, mass of the stone in kg is (take, g= 10 ms^(-2) )

    A
    `0.75`
    B
    `1.0`
    C
    `1.5`
    D
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