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The coin is notating with a plate withou...

The coin is notating with a plate without sliding If the coefficient of friction between the coin and plane is `mu = 0.75` the friction between the coin and plate is

If the plate is rotating along and the coin is gently placed on the rotating plate, the frictional force on the coin is

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The correct Answer is:
d
If coin is gently on the rotating plate, initially the coin will slide with respect to plate and friction will be kinetic nature
`f = mu N = mu mg= 0.75= (3)/(4)mg`
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