A 21 ft. ladder is leaning against a house while the base is pulled away at a constant rate of 1.5 ft./s. At what rate is the top of the ladder sliding down the side of the house when the base is: 1 foot from the house? Answer= 0.8 5 feet from the house? Answer= 20 feet from the house? Answer= (Answers should be positive.)

Q: On a day  when the wind is blowing toward the south at 3 m/s, a runner jogs west at 1.9 m/s.what is…

A: Let V1 be the velocity of the air and V2 be the velocity of the runner, then the relative velocity…

Q: A balloon, leaving the ground 53 ft from an observer, rises 10.75 ft/sec. How fast is the angle of…

A: The given problem is to find the how fast is the angle of elevation of the line of sight increasing…