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In linear motion , every point in the object is moving in the same direction with the same speed, that is every point has the same velocity ( speed + direction). However in rotational motion, every point does not have a the same speed ( the points farther from the axis have a higher speed, and the points closer to the axis have a slower speed), and not every point’s movement is in the same direction. If the London Eye is moving clockwise, then the top point is moving towards the right, and the bottom most point is moving towards the left, so clearly every point does not have the same direction of movement.