Question

(1 point) A 17 foot ladder is leaning against a wall. If the top slips down the wall at a rate of 2 t/s, how fast will the foot be moving away from the wall when the top is 13 feet above the ground? The foot will be moving at t/s

Answer 1

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PAGE NO DATE y 2-17 y = 13, 17 foot x=? dy at x² + y2 = 22 x²+ (13)² = (17)? drjat x² = (17)² – (13)2 = 289 - 169 120 2 1120 x=√120 ~ 10.95 2. x² + + zy ty 22 2x dx 2z dz dt dt dt x da dy ty Z dz at dt dt Odz and dy -2 st/ see at x da at y dy dt da dt -4fdy x alt 2 da dt 13 x (-2) (120 2:37 346 ft/sec