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A particle is moving in a circular path ...

A particle is moving in a circular path of radius r with constant speed. Due to change in the direction of motion of the particle continously, the velocity of the particle is changing . But the kinetic energy of the particle remains the same. Explain why ?

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Knowledge Check

  • A particle is moving in a circle in a radius 'r' with a constant speed 'V'. The change in velocity after the particle has travelled a distance equal to (1/8) of the circle is

    A
    zero
    B
    0.414V
    C
    0.5857V
    D
    0.805V

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    A
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    B
    `36m/s^2`
    C
    `5m/s^2`
    D
    `15 m/s^2`

  • A particle moves along a circular path of radius r with uniform speed v. The angle described by the particle in one second is given by

    A
    `v/r`
    B
    `v(-1)`
    C
    `vr^(-2)`
    D
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