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NEET-XII-Physics

07: Circular Motion

with Solutions -
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  • #4
    A particle of mass m is observed from an inertial frame of reference and is found to move in a circle of radius r with a uniform speed v. The centrifugal force on it is
    (a)``mv^2r`` towards the centre
    (b) ``mv^2r`` away from the centre
    (c)``mv^2r`` along the tangent through the particle
    (d) zero
    digAnsr:   d
    Ans : (d) zero
    The centrifugal force is a pseudo force and can only be observed from the frame of reference, which is non-inertial w.r.t. the particle.