There is no answer to your question because your rate of acceleration is not consistent. If you look at a chart of G's under WOT, you'll see what I'm talking about. It makes an arc, going up around torque peak and then back down up to redline. Then when you shift to the next gear, it goes down a little and makes a similar arc but at a lower level on the graph.
But anyway, it's not possible to figure it out.