A ladder of fixed length slides down a smooth wall so that its foot moves outward…

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

A ladder of fixed length slides down a smooth wall so that its foot moves outward along the floor. State whether the rate at which the top descends is positive, negative, or zero relative to the rate at which the foot moves outward, and briefly explain your reasoning in one or two sentences.

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