1. The problem statement, all variables and given/known data Hi all. Please help me with this. A small particle moving with a uniform acceleration a covers a distances X and Y in the first two equal and consecutive intervals of time t. Show that a = Y-X/t². 2. Relevant equations Acceleration is usually v-u/t i.e. rate of change of velocity with time. 3. The attempt at a solution Since Y and X are distances, and t is time, and the unit for acceleration is m/s², I put two and two together. That was pretty easy, but I looked at the question properly and saw there was more to it than that, for instance, the 'first two equal and consecutive intervals of time t' I used different equations of motion such as s=ut+1/2at and v²=u²+2aS, but I kept getting stuck. Help, please!