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The top of a 50-foot ladder is sliding down a wall at a rate of 15...

The top of a 50-foot ladder is sliding down a wall at a rate of 15 feet per second. How fast is the base of the ladder sliding away from the wall at the instant when the top of the ladder is 30 feet from the ground? HINT [See Example 2.]

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Answer #1

We will use differentiation to calculate the rate with which the ladder is sliding away from the wall.

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