The present record for the 100 meter dash is 9.58 seconds. back in 1988, Johnson ran the 100 meter dash in the world record time of 9.79 seconds. He was later to lose both his record and his gold medal to runner up Lewis because of steroid use. Calculate Johnson's average speed, in meters/ second.

To calculate Johnson's average speed in meters per second, we need to divide the distance he ran by the time it took him to complete the race.

Let's start by converting the time to seconds:
9.79 seconds

The distance covered in the 100-meter dash is 100 meters.

Now we can calculate the average speed:
Average Speed = Distance / Time

Average Speed = 100 meters / 9.79 seconds

Average Speed ≈ 10.22 meters per second

So, Johnson's average speed in the 100-meter dash is approximately 10.22 meters per second.

To calculate Johnson's average speed in meters per second, we need to divide the distance he covered (100 meters) by the time it took him to run that distance (9.79 seconds).

Average Speed = Distance / Time

Average Speed = 100 meters / 9.79 seconds

To obtain the result, divide 100 by 9.79:

Average Speed ≈ 10.22 meters / second

Therefore, Johnson's average speed in the 100-meter dash was approximately 10.22 meters per second.