hi i need to calculate the torsional stiffness of a sample, the data is in the excel file.
To work it out it = 1/samplek= 1/totalk - 1/machinek
the machine k was given as 42800NM/radian
the total k is the slope of the line which comes to y=658x
what i dont get is what am i meant to do with y=658x,
cheers any help would be great