Hi, I am trying to find the acceleration of gravity using a 240 fps video of a falling tennis ball. I can see the y vs.t graph but the vy vs. t graph is blank. Suggestions please. Thx.
You probably skipped steps when marking the points. Velocities require 3 steps in a row to calculate the center one. Accelerations require 5 steps in a row. Best to mark all steps. If you want to skip some frames, increase the step length. Doug
> I am trying to find the acceleration of gravity > using a 240 fps video of a falling tennis ball. I > can see the y vs.t graph but the vy vs. t graph is > blank. Suggestions please. Thx.
