Question

A teacher walks 50 m down the hall, turns around and walks 100 m up the hall in 50 s. What is the teacher's speed in m/s?

Answer 1

The teacher's speed is 3 m/s, which is calculated by dividing the total distance of 150 m by the total time of 50 s.

Step-by-step explanation:

The speed of the teacher can be calculated by dividing the total distance traveled by the total time taken to cover that distance. The teacher first walks 50 m down the hall and then turns around to walk 100 m up the hall, covering a total distance of 150 m. The time taken to cover this distance is 50 s. To find the speed, use the formula speed = distance/time.

Speed = 150 m / 50 s = 3 m/s.

Therefore, the teacher's speed in the hall is 3 meters per second (m/s).