Suppose that you support a meter stick horizontally by positioning one finger under one of the ends and the other finger about one-quarter of the way from the opposite end. Now suppose you move your fingers slowly together until they touch. By number, identify what will most likely happen to the meter stick: it will fall off the side with the finger under the end; it will fall off the side with the finger about one quarter of the way from the end; or it will stay balanced on your fingers.
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