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A ball is held at rest in position A by...

A ball is held at rest in position A by two light strings. The horizontal string is now cut and the ball swings to the position B as shown in figure. If 5kg is the mass of the ball and g is the acceleration due to gravity, then tension in the string attached to the bob in position A is `(xg)/(costheta)` The value of 'x' is

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Knowledge Check

  • In the figure shown acceleration with which the mass m falls down when released is ( consider the string to be massless g-acceleration due to gravity )

    A
    `(2g)/(3)`
    B
    `(g)/(2)`
    C
    `(5g)/(6)`
    D
    g

  • A uniform rod of mass m and length l is held horizontally by two vertical strings of negligible mass, as shown in the figure. Immediately after the right string is cut.

    A
    Linear accleration of the free end of the rod is `(3g)/(2)`
    B
    Linear accleration of the middle of the rod is `(3g)/(4)`
    C
    Tension in the left string is `(mg)/(2)`
    D
    Tension in the left string is `(mg)/(4)`

  • Two bodies of masses 1 kg and 2 kg are connected by a very light string passed over a clamped light smooth pulley. If the system is released from rest, find the acceleration of two two masses and the tension in the string

    A
    `3.27m//s^2 , 13N`
    B
    `4.5m//s^2,26N`
    C
    `1.27m//s^2,13N`
    D
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