Physics
A metal ball is whirled inside a ring placed on a table, as shown in the diagram P. The diagram Q shows the motion of the ball after the ring is lifted.
Which of the following diagrams shows the correct position of the metal ball in the ring when the ring is lifted?
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Answer
Reason — In circular motion, the velocity of an object is always tangential to the point on its path. In the figure, the ball is moving clockwise within the ring, and upon lifting the ring, the ball moves toward the right, making option 3 the correct choice.
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