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2 August, 03:11

Elevator 1 in a hotel moved from ground position to a final position of + 18 feet. Elevator 2 in the same building moved from ground to a final position of - 20 feet. Which statement best describes the final positions of these two elevators?

A: Elevator 1 is 18 feet below ground level, and Elevator 2 is 20 feet above ground level.

B: Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below ground level.

C: Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below the position of Elevator 1.

D: Elevator 1 is 18 feet below ground level, and Elevator 2 is 20 feet above the position of Elevator 1.

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  1. 2 August, 06:51
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    Answer: B. Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below ground level.

    Step-by-step explanation:

    Let "up" be positive and "down" be negative.

    Both elevators start at position x = 0

    The change in x (Δx) of Elevator 1 is + 18 feet, which means it is 18 feet above the origin (which is ground level)

    The change in x (Δx) of Elevator 2 is - 20 feet, which means it is 20 feet below the origin (which is ground level)

    Therefore, Elevator 1 is 18 feet above ground level, while Elevator 2 is 20 feet below
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