Question

Usain Bolt of Jamaica set a world record in 2009 for the 200- meter dash with a time of 19.19 seconds. What was his average speed

Answer 1

Usain Bolt's average speed in the 200-meter dash was 10.42 meters per second.

Step-by-step explanation:

The average speed for an object is calculated by dividing the total distance traveled by the total time taken. In the case of Usain Bolt's world record in the 200-meter dash, his time was 19.19 seconds.

To find his average speed, we need to know the total distance that he covered during the race. Since it is a 200-meter dash, his average speed can be calculated by dividing the distance of 200 meters by the time of 19.19 seconds.

Therefore, his average speed was 10.42 meters per second.

Answer 2

His average speed was of 10.42 m/s

Step-by-step explanation:

We use the following relation to solve this question:

`v = (d)/(t)`

In which v is the velocity(in m/s), d is the distance(in meters), and t is the time, in seconds.

Usain Bolt of Jamaica set a world record in 2009 for the 200- meter dash with a time of 19.19 seconds.

This means that
`d = 200, t = 19.19`

So his average speed was of:

`v = (d)/(t) = (200)/(19.19) = 10.42`

His average speed was of 10.42 m/s