A body of mass 0.4 kg is whirled in a horizontal circle of radius 2 m with a constant speed of `10 ms^-1`. Calculate its frequency of revolution.

A body of mass 0.5 kg made to revolve in a horizontal circle of radius 3 m with a uniform speed of 12 mm/s . Find its (i) angular speed (ii) frequency of revolution. (iii) time period . (iv) centripetal acceleration.

An object of mass 2 kg is whirled rround in a verticle circle of radius 1m with a constant speed of 4 m//s .Then the maximum tension in the string is (g=10 m//s^(2))

A whistle emitting a loud sound of frequency 540 Hz is whirled in a horizontal circle of radius 2 m and at a constant angular speed of 15 rad//s . The speed of sound is 330 m//s . The ratio of the highest to the lowest frequency heard by a listener standing at rest at a large distance from the center of the circle is

A ball of mass 0.1 Kg. is whirled in a horizontal circle of radius 1 m . by means of a string at an initial speed of 10 R.P.M. Keeping the radius constant, the tension in the string is reduced to one quarter of its initial value. The new speed is

An object is moving in a circle of radius 100 m with a constant speed of 31.4 m//s . What is its average speed for one complete revolution

A body of mass 5kg is moving along a circle of a radius 1 m with a uniform speed of 5 m/s .What is the acceleration of body?

A body of mass 1 kg is rotated in a horizontal circle of radius 1 m and moves with velocity 2 ms^(-1) The work done in 10 revolutions is

A body of mass 1 kg tied to one end of string is revolved in a horizontal circle of radius 0.1 m with a speed of 3 "revolution"//sec , assuming the effect of gravity is negligible, then linear velocity, acceleration and tension in the string will be

A particle of mass 1kg is moving about a circle of radius 1m with a speed of 1m//s . Calculate the angular momentum of the particle.

A stone of mass 4kg is whirled in a horizontal circle of radius 1m and makes 2 rev/sec. The moment of inertia of the stone about the axis of rotation is