Q6.(a) A shiny coin is on a rough horizontal turntable at a distance 0.8 m from its centre.The turntable rotates at a constant angular speed. The coefficient of friction between the shiny coinand the turntable is 0.3.Find the maximum angular speed, in radians per second, at which the turntable can rotate if theshiny coin is not going to slide.(b) The turntable is stopped, and the shiny coin is removed. An old coin is placed on theturntable at a distance 0.15 m from its centre. The turntable is made to rotate at a constant angularspeed of 45 revolutions per minute.(1) Find the angular speed of the turntable in radians per second.(ii) The old coin remains in the same position on the turntable.Find the least value of the coefficient of friction between the old coin and the turntable needed toprevent the old coin from sliding.

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Answered: (a) A shiny coin is on a rough…

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