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A wheel is subjected to uniform angular acceleration about its axis. Initially its angular velocity is zero. In the first it rotates through an angle in the next it rotates through an angle The ratio of is
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Important Questions on Rotation
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JEE Main
IMPORTANT
A wheel is rotating at about its axis. When power is cut-off it comes to rest in The angular retardation in is
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JEE Main
IMPORTANT
If the equation for the displacement of a particle moving on a circular path is given by where is in radian and is in second, then the angular velocity of the particle after is
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A constant torque of turns a wheel of moment of inertia about an axis through its centre. Its angular velocity after is
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A table fan, rotating at a speed of is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
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JEE Main
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A wheel is at rest. Its angular velocity increases uniformly and becomes after The total angular displacement is
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A rigid body rotates about a fixed axis with variable angular velocity equal to at the time where are constants. The angle through which it rotates before its stops
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JEE Main
IMPORTANT
A flywheel having a radius of gyration of and mass rotates at an angular speed of about an axis perpendicular to it through its centre. The kinetic energy of rotation is
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JEE Main
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A wheel is rotating at the rate of If it comes to stop in Then, the angular retardation will be
