Gradient and Area under a graph - Speed-time graph

Two of the SPM past year questions are shown here, to give you better understanding about the speed-time graph. In addition, this video also explain the uniform speed, rate of change of speed, and the average speed of the graph. Hope this video do help u. ;-) Anyways, If you would like to have more interaction with me, or ask me more question, or suggest some chapter u want to learn, please add the facebook page at "y=mx+c" or www.facebook.com/maths.video.