Of course, this seems obvious to anyone who drives a car, but I just wanted to make the point that speed does not involve a direction. Well, this is also fairly obvious. If it were moving at a speed of 100 mph, it would travel a distance of 100 miles in one hour of time. No surprises here. Next, let me define something called average speed.
Average speed is defined a follows.
For instance, let's say that it takes you 2 hours to travel a distance of 100 miles. Next, let's contrast average speed to instantaneous speed . Well, as you might have guessed, instantaneous speed is the speed at which you are currently traveling at the moment. For instance, if you are driving along and look down at the speedometer, your instantaneous speed at that moment would be what was displayed on your speedometer. Well, let's go back to the example above.