Question

A car travels 100 meters in 5 seconds. What is the speed of the car?

speed = distance over time; 1 mile = 1609 meters

8.9 miles per hour

16 miles per hour

20 miles per hour

44.7 miles per hour

Answer 1

v = s / t = 100 m / 5 s = ? m/s
1 h = 3600 s
1 mile = 1609 m

Answer 2

and this is chemistry department so you probably want to post this question in physics department