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A particle of mass m is performing vertical circular motion (see figure). If the average speed of the particle is increased, then at which point maximum breaking possibility of the string :-
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Important Questions on Circular Motion
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A fighter plane is moving in a vertical circle of radius . Its minimum velocity at the highest point of the circle will be :-
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A stone of mass is tied to one end of a thread of length whirled in a vertical circle. When the stone is at the lowest point of circle, tension in thread is , then velocity of the stone will be
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A suspended simple pendulum of length is making an angle with the vertical. On releasing, its velocity at the lowest point will be:-
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On account of the earth rotating about its axis
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A tube of length is filled completely with an incompressible liquid of mass and closed at both ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity . The force exerted by the liquid at the other end is
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A roller coaster is designed such that riders experience"weightlessness" as they go round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top of the hill is between.
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A gramophone record is revolving with an angular velocity . A coin is placed at a distance from the centre of the record. The static coefficient of friction is . The coin will revolve with the record if
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A car of mass negotiates a banked curve of radius on a frictionless road. If banking angle is , the maximum speed of car is
