3. A coin is placed 12.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turn table until a rate of 35.0 rpm is reached, at which point the coin slides off. (a) Find the speed of the coin just before it starts to slide. (b) What is the coin's acceleration just before it starts to slide? (magnitude and direction) (c) What is the source of the force that causes the coin to accelerate? (d) Find the coefficient of static friction between the coin and the turntable.

3. A coin is placed 12.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turn table until a rate of 35.0 rpm is reached, at which point the coin slides off. (a) Find the speed of the coin just before it starts to slide. (b) What is the coin's acceleration just before it starts to slide? (magnitude and direction) (c) What is the source of the force that causes the coin to accelerate? (d) Find the coefficient of static friction between the coin and the turntable.

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Circular Motion And Other Applications Of Newton's Laws

Section: Chapter Questions

Problem 9P

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