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basically, i need to know how to find the distance travelled by something using a speed/time graph. i know this is area under it (curvey accerlation then constant speed then curvey retardation). so i what i though i'd do is split the graph into, accel., constant v, and retard. now i know how to find the distance travelled during constant v. but i not sure how to do with accerlation and retardation.

i know the accerlation to be 6.62m/s^2 for 2.9s and the retardation to be -1.2m/s^2 for 1s, or i 'think' it can be written as 1.2m/s^-2 ???

anyways, can someone please explain how i would find the distance travelled please :D and say if im doint he wrong way too. thnx