Belt friction between two pulleys.

[Oakwater]

Homework Statement

http://imageshack.us/m/135/2262/beltz.jpg

I do no understand as shown in the above picture why T1 = 1 to make e^u0 = e^-u0, could anyone offer an explanation as to why this is the case?

Thanks

Homework Equations

All above

The Attempt at a Solution

 

[Oakwater]

As far as I can see what has been done is that given that T1/T2 = e^u0 then T1/e^u0 = T2.
Knowing that T1 is tightside tension and therefore Tmax, how is it that T1 = 1 in order to rearrange for T2 = e^u0?

I'm sure the answer is very obvious but I really can't see what is going on.

 

[tiny-tim]

Hi Oakwater!

(have a mu: µ and a theta: θ and try using the X² and X₂ icons just above the Reply box )

It must be a misprint for T₂ = T₁e^-µθ

T₂ = e^-µθ isn't dimensionally possible …

e^something has to be a dimensionless number.​