@ehild
so the second graph is pi-pi/6=5pi/6.
But that answer seems counter-intuitive for me.
so, it is not necessarily just the protruding bit that you take into account, you consider
where that bit is with respect to the displacement axis. Please explain it more
and with the trig reasoning...
I'm sorry about not giving enough details, as I have found out from the out set this forum has strict rules.
The image attached is from a workbook that I bought to provide a clearer understanding of the concepts I read. it is not an assignment.
I'm totally confused and frustrated with...