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CDS Related Rates — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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A 13-m ladder leans against a wall. Its top slides down at 0.5 m/s. When the foot is 5 m from the wall, the foThe volume of a sphere is increasing at $8\pi$ cm³/s. The rate of change of surface area when the radius is 2