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When a body moves with a constant speed along a circle :
(a)no acceleration is present in the body
(b)no force acts on the body
(c)its velocity remains constant
(d)no work gets done on it

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Important Questions on Circular Motion
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A pendulum is suspended from the roof of a rail road car. When the car is moving on a circular track the pendulum inclines

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A string of length cannot bear a tension more than . It is tied to a body of mass and rotated in a horizontal circle. The maximum angular velocity can be -

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The radius of the circular path of a particle is doubled but its frequency of rotation is kept constant. If the initial centripetal force be , then the final value of centripetal force will be :-

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A ball moves in a circle of radius at a speed of . The centripetal force on the ball is :

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A body is revolving with a constant speed along a circle. If its direction of motion is reversed, but the speed remains the same then:

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and represent radial and tangential acceleration. The mentioned particle will be in uniform circular motion, if :

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In uniform circular motion, the velocity vector and acceleration vector are

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A string breaks if its tension exceeds . A stone of mass tied to this string of length is rotated in a horizontal circle. The maximum angular velocity of rotation can be
