I have no idea how to find Ff or mu

Oct 2018

Can’t find any examples like this in my notes and my lab partner handed in theirs without even letting me see it so I’m stuck haha. I’m trying to find mu but I need Ff for that.

Sent from my iPhone using Tapatalk
Jun 2016
What you are looking for is something that is different between the
"expected" theoretical behaviour if the friction were zero and
the actual observed behaviour.

In the absence of friction; Force = Mass x Acceleration
with friction; (Force-Friction)=Mass x Acceleration.

Be a little bit careful just following the above word for word,
I have just sketched out the idea,
you will have to fit it to your experiment.