During a race a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25 s what is the sprinters average acceleration during this period

So keep in mind acceleration is velocity over time, or more specifically, Δvelocity / Δtime. You're given a change in velocity and time. So your equation should look like: 


Solve that equation, and remember acceleration will be in !

So since the snail is moving at 3.6  miles per hour you multiply by 5280 to change it into feet per hour. so you get 36*528 ft per hour. since there are 3600 seconds in an hour, you divide 36*528 by 3600. so simplifying we get 528/100 which is 5.28 ft per second

Binary fission and mitosis