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Fats can be separated from milk in a cream separator because of,

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Important Questions on Circular Motion

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If p is the magnitude of linear momentum of a particle executing a uniform circular motion, then the ratio of centripetal force acting on the particle to its linear momentum is given by,
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A racing car of mass 102 kg goes around a circular track (horizontal) of radius 10 m. The maximum thrust that track can withstand is 105 N. The maximum speed with which the car can go around is,
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Two particles of equal masses are revolving in circular paths of radii r1 and r2, respectively, with the same speed. The ratio of their centripetal forces is,
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Which quantity is fixed when the bob of a conical pendulum is moving in a horizontal circle at constant speed?
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A particle performs uniform circular motion in a horizontal plane. The radius of the circle is 20 cm. The centripetal force acting on the particle is 10 N. Its kinetic energy is,
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On a railway curve, the outside rail is laid higher than the inside one, so that resultant force exerted on the wheels of the rail car by the tops of the rails will,
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One end of a string of length 'l' is connected to a particle of mass 'm' and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed 'v', the net force on the particle (directed towards the centre is: (T is the tension in the string)
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A string breaks if its tension exceeds 10 N. A stone of mass 250 g, tied to this string of length 10 cm, is rotated in a horizontal circle. The maximum angular velocity of rotation can be,