Physics of V-Stretches
I understand the physics behind why V-stretches are supposed to be better, but it seems flawed to me. I’ll do this unnecessary detail, just for fun.
Take a cable, suspended between two telephone polls. Pull down on the cable half-way between the telephone polls. We have a situation similar to a V-stretch. Assume ideal conditions (zero gravity, two dimensional cable, etc.) Now, take an incremental length of cable from any point, and it is necessarily acted upon by two tensions of equal and opposite magnitude acting along its length (otherwise this section of cable would be moving). Move along the cable one incremental length at a time, and you’ll find the tension in each section of the cable must be the same as every other section.
We don’t need to analyze the fulcrum point, but, summing vectors: Cable tension acting towards left hand telephone poll joint + Cable tension acting towards right hand telephone poll joint + force cable fulcrum is being pulled down with = 0.
So the tension in every single point of the cable is equal. This is pretty basic mechanics.
Now for my point of contention. What is the magnitude of the tension in the cable? Take the incremental section of cable with one side joined to the left telephone poll. It is being acted on by two forces, one, the tension in the cable, two, the supporting force from the telephone poll. The section is not moving, so, talking in absolute values, the magnitude of the tension in the cable is equal to the magnitude of the support force at the telephone poll. Let me repeat that. The magnitude of the tension in the cable is equal to the magnitude of the support force at the telephone poll.
In other words, the tension in the penis is equal to the force with which you pull it! Exactly the same as if you were doing a normal manual stretch!
Now, the changed shape and bend of the penis may cause the stretch to emphasize different areas in different ways, but do not be confused into thinking the force in the penis is magnified by adding a fulcrum. Assuming a stationary penis, the tension it supports is always equal to the force with which you pull it.
Last edited by Nedd : 11-24-2003 at .