A coin is placed on a horizontal phonograph turntable. Let N be themagnitude of

Question

A coin is placed on a horizontal phonograph turntable. Let N be themagnitude of the normal force exerted by the turntable on the coin,f be the magnitude of the frictional force exerted by the turntableon the coin, and fs, max be the maximum possible force of staticfriction. The speed of the turntable is increased in small steps.If the coin does not slide, then f increases andboth N and fs, max stay the same
N increases, fincreases, and fs, max stays the same
N, f, and fs, maxall stay the same
N, f, and fs, maxall increase
N increases, fincreases, and fs, max increases Pls do explain on the right answer. Thanks

Explanation / Answer

option A because when speed increases,centripetal force increases which is provided by frictional force.for frictional force to increase ,normal reaction should increase.but max static friction remains same.

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