. A 25 ft ladder is leaning against a vertical wall. The bottom of the ladder is pulled horizontally away from the wall at 3 ft/sec. Determine how fast the top of the ladder is sliding when the bottom of the ladder is 15 ft from the wall.
A) –4 ft/sec
B) –2.25 ft/sec
C) –13.375 ft/sec
D)–12.25 ft/sec
E) –0.75 ft/sec

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first write the position of the top as a function of the position of the bottom

How do I do that? please explain in detail

although if you don't have to show your work, you can just guess the sensible answer

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