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  4. A particle is kept fixed on a turntable rotating uniformly. As seen from the ground, the particle goes in a circle, its speed is 20 cm / s and acceleration is 20 cm / s 2. The particle is now shifted to a new position to make the radius half of the original value. The new values of the speed and acceleration will be :

Q. A particle is kept fixed on a turntable rotating uniformly. As seen from the ground, the particle goes in a circle, its speed is and acceleration is . The particle is now shifted to a new position to make the radius half of the original value. The new values of the speed and acceleration will be :

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Solution:

The angular velocity and angular acceleration remains constant :



Similarly,

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