Hi everyone,

I am looking at some position data that was taken at a rate of 238 frames per second. The sensor starts from rest and then begins to move. Using the position data, I have calculated the velocity and the acceleration of the position of the sensor but here is my question: How should I report the initial acceleration? I can calculate the instantaneous acceleration between each data point but those numbers are pretty crazy due to the small time increments (< 0.01 s). Obviously most of the acceleration is in the first tenth of a second, so the bigger my window, the smaller the initial acceleration becomes. In motion data, what is an accepted envelope for reporting acceleration? Should I report the acceleration over the first tenth of a second? Or over the first quarter of a second? Anyone? Bueller? Thank you for your help.

Ann