Let's say that you are standing at the north axis point of Earth (which, by the way, is not exactly at the north pole). As you stand there, you spin around with the earth at a speed of one revolution per day but your speed in feet per minute or miles per hour is nil. Now, let us say that you step off that point and start waking away from it. The further away you get from the axis point (like the north pole), the faster you start moving. When you reach the equator, you will be going faster than anywhere else (1037 mph) but you would still be turning at the same RPM. This is all true if the Earth is a perfect sphere, which it isn't.
OK, got that? Then tell me, how fast are you really going if you are driving down the road from the northeast to the southwest at 65 mph with a 15 mph cross wind and with one window down in the state of Texas? Now have a great day, you hear?