and acceleration = velocity change ÷ time. To find the distance travelled, look at the area under the graph. In the first 10 seconds this is the area of the triangle, ½ × 10 s × 40 m/s = 200 m.

Save guides, add subjects and pick up where you left off with your BBC account. The gradient of a velocity-time graph at a particular time gives the acceleration of the object at that time.

I wrote this as a the magnitude of the acceleration and change in velocity so it matches up with our graph. Since the graph is velocity vs. time, the change in velocity divided by the change in ...

Given Bolt’s times for each 10-meter split in the 2008 100-meter race, you can first plot a graph which shows Bolt accelerating ... to these data so that you can calculate Bolt’s velocity and ...