I travel from Lubbock to Louisiana and we are finding the speed to get there. The formula to get the speed is d/t. So when we divided 8hr and 58 min by 898013.9 you will get 27.8 m/s. I got 898013.9 from converting 558 miles to meters.
The speed will always tell you how fast you are going,Then velocity will let you know what direction you are going, then last but not least is acceleration is like starting,stopping,and turning but those are the main ones.