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The coefficient of static friction between a small coin and the surface of a turntable is 0.30 . The turntable rotates at `2 rad s^(-1)`. What is maximum distance from the centre of the turntable at which the coin will not slide ?A. 7.5 mB. 1.5 mC. 0.15 mD. 0.75 m |
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Answer» Correct Answer - 4 `mu mg =m omega^(2) R ` `R=(mug)/(omega^(2))=(0.3xx10)/4=0.75` |
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