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For question 1, consider the simple fact that two points on the same radius, one on the circumference and one inside the circle travel with the same angular velocity (Don't worry if you don't know the term). Both move by equal angles in equal amounts of time. Obviously, with a greater radius, the arc length is greater. Hence, the answer is intuitively A. Even if the points are on different radii, the angles covered in equal times would be equal.
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