Question

Usain Bolt, the world-renowned sprinter, is known for his incredible speed. In which unit of speed is his record-breaking sprint typically measured? A) Kilometers per hour (km/h) B) Meters per second (m/s) C) Feet per second (ft/s) D) Miles per hour (mph)

Answer 1

Usain Bolt's record-breaking sprints are typically measured in meters per second (m/s). This metric is used because race distances are usually measured in meters. For instance, in the 2009 World Championships, Bolt ran the 100m in 9.58 seconds, which translates to around 10.44 m/s.

Step-by-step explanation:

The speed of Usain Bolt's record-breaking sprints is most commonly measured in Meters per second (m/s). Speed is a measure of how quickly an object (or person, in this case) moves relative to a reference point. It can be measured in many units, but in the world of track and field athletics, the standard is to use the meters per second. This is because the race distances are typically measured in meters, and thus it simplifies things to express speed in terms of those same units.

For example, in the 2009 World Championships, Bolt ran the 100m sprint in 9.58 seconds. To calculate his speed, you would divide the total distance (100 meters) by the time (9.58 seconds), yielding approximately 10.44 m/s. This is how we measure speed of a sprinter like Usain Bolt.

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