Ok then, if there is interest, let's start by choosing a standard chip, I have a few kind digital and analog output, to collect raw force data, then we can put them in some equation, code, to start with.
2aΔs= vf2 - vi2
vi2= vf2 - 2aΔs
vf2 = vi2 + 2aΔs
Δs= (vf2 - vi2) ÷ 2a
a = (vf2 - vi2) ÷ 2Δs
Where a is the acceleration, Δs the space within where a happen, vf the final velocity and vi the initial velocity.
From those simple elements, we can deduce lots of stuff.