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The document describes a car wheel rotating at 20 revolutions per minute with a radius of 26cm. It asks several questions about the motion of point X on the wheel: 1) Sketch a graph of point X over two revolutions. 2) Write a sine and cosine equation to model point X's motion. 3) Determine when point X is 20cm above the pavement. 4) Determine the length of one full revolution of the car wheel. 5) Determine how many revolutions are needed to travel 1km. The document provides the necessary information and steps to solve each part using trigonometric functions and equations.
