Mathematics, 19.01.2021 22:20 linreaburg

the top of a 15-foot long ladder rests against a vertical wall with the bottom of the ladder on level ground. The ladder is sliding down at a constant rate of 2 feet per second. At what rate, in radians per second, is the acute angle between the bottom of the ladder and the ground changing at the instant the bottom of the ladder is 9 feet from the base wall?

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