In this lesson, we will learn how to use the slope of the line on a velocity vs. time graph to calculate the acceleration of an object in straight... Average acceleration equals to the difference in speed over time. When we have two speeds we can calculate the acceleration during the time interval, t , by subtracting the initial speed from the final speed ( we get the change in speed ) and then dividing by the time to get the acceleration.

If we know average speed and travel time, the distance traveled is easy to find. total distance covered = average speed × travel time For example, if your average speed is 80 kilometers per hour on a 4-hour trip, then you cover a total distance of 320 kilometers. 4.2 Speed For a graph with velocity vs. time - the area under the graph is distance traveled: You can use the calculator below to summarize traveled distance: Distance traveled: (m, ft, km, miles - depending on the units used)