Understanding the Concepts

* Speed: Speed is the rate at which an object moves over a certain distance. It's calculated as distance divided by time.

* Distance: The total length covered by the object.

* Time: The duration it takes to cover the distance.

Formula

Speed = Distance / Time

Calculation

* Distance = 20 meters

* Time = 0.5 seconds

Speed = 20 meters / 0.5 seconds

Speed = 40 meters per second (m/s)

Answer: The baseball's speed is 40 meters per second.