A 5.7 g quarter sits 25 cm from the axis of rotation on a turntable that has a period of rotation of 1.8 seconds. a) Draw a free-body diagram showing the forces involved. b) What is the weight of the quarter in Newtons? c) What is the NORMAL FORCE acting on the quarter.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!