During a race, a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25s. What is the sprinter’s average acceleration during this period?

Explanation:

Acceleration can be found by dividing the change in velocity by the time.

The time is 1.25 seconds.  The change in velocity is the difference between the initial velocity and the final velocity.

   The final velocity is 7.5 m/s and the initial velocity is 5.0 m/s  

Substitute the values into the formula.

Divide.

The sprinter's average acceleration is 2 meters per second squared.

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

The object's initial distance above the groundthe object's initial velocity