Static coefficient

 

We did the static coefficients with a cardboard ramp, there were 3 of us in the group, each of us had to do 3, so that in total we did 15.

We downloaded an application on our phone, and we had to calculate the acceleration with g, we let the phone fall down the ramp but before it reached the end we stopped it and did the rest of the calculations and we did that in Excel.

We had some problems because sometimes measuring the acceleration, because sometimes we removed the case from the phone and the friction of the two surfaces was not the same.