Question

An elevator ascends from the ground floor to the 10th floor of a building in 24 seconds at a constant rate. The elevator doors opened and closed. It then descended to the ground floor at the same rate. Which graph BEST represents the distance the elevator traveled in 1 minute?

Answer 1

ANSWER and EXPLANATION

We want to identify the distance-time graph that best represents the distance the elevator traveled in 1 minute.

The elevator went from the ground floor to the 10th floor. This means that it went from the least height to the highest possible height (in this scenario).

Then, it went back to the ground floor at the same rate.

Given that it is a distance-time graph, the constant rate (constant velocity) is represented by a slant line.

Hence, going up will be represented by a line increasing steadily while going down, at the same rate will be represented by a line decreasing or going down but with the same slope as the increasing line but in an opposite direction.

Therefore, the correct option is: