My teacher has given me a Extended Experimental Investigation to do that requires physics. I know a bit about it (the very basics) and i'm not sure on a few things about it. For my task I have forgotten to measure my displacement and I was wondering if anybody knew a way I could still find it. I'll write down what i've got so far (I'm using a ticker timer and my task is to investigate the effect of a load on displacement, velocity and acceleration on a trolley): I have a graph showing my section of the tape, mass, time, length, Average acceleration of 5 intervals, Average acceleration for section and Average Acceleration for tape. If anybody could help me, that would be very much appreciated. Thanks, Aaron.