Question

which is the correct definition of speed? slide 5
○ distance per time (miles per hour or meters per second)
○ time per distance (hours per mile or seconds per meter
○ distance (miles or meters)
○ time (hours or seconds)

Explanation:

Speed is defined as the distance traveled divided by the time taken to travel that distance. So the unit of speed should be distance per unit time, like miles per hour or meters per second. The first option is distance per time (miles per hour or meters per second), which matches the definition of speed. The second option is time per distance (inverse of speed, like hours per mile), the third is distance (not speed), and the fourth is time (not speed).

Answer:

A. distance per time (miles per hour or meters per second)