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A student swings a ball around his head in a perfectly circular, horizontal orbit with a constant Tension. Whichof the following is true concerning the ball's orbit?A. No work is done by the Tension force since the force is perpendicular to the ball's motion.B. The ball maintains a constant speed.C. The ball maintains a constant velocity.D. The ball's speed increases due to the work done by the Tension force.
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