Question about the Physics Model

[Sweendoggy]

Also I did this real quick.

This is basically a really simplified version of the stopping distance, removing all the other variables....

Basically this is another way to show that the stopping distance is independent from the mass, just as prologue showed with his equations, this is just another way.

[Prologue]

...

That is a big reason why if you lean all the way over the bars and front brake hard, you will endo and die, or if you lean over the front of the bike and hit the back brake, it will be light, and probably slide out on you, and not stop very fast...

These things actually will change the stopping distance a lot.

...

The way I see it is that as long as you aren't applying so much braking force that you endo, your body position doesn't matter. If you lean forward you will just have more force on your front wheel, versus the back, which means you can brake harder in the front. You won't have very much control in real life though because you'll be plastered against the bars/fender (armpump anyone?). I hear what you are saying on the other points, there are so many variables. Isn't it amazing that they don't really matter in the end? (within a few feet)

[Sweendoggy]

For sure, that is exactly why a agree that you can neglect them, unless you are trying to get extremely accurate results.

Using the "traction gain" that you and JLV have talked about, I suppose an endo would be that since you weigh the front, the front has more traction, and when you apply the braking force, mixed with that traction so to speak, is enough to lift the rear of the bike...

Of course leaning forward is more a way for you to control it, as it is "fine" adjustment compared to jamming on the brakes, which would just drive your head into the ground!

[MOTO94]

Im in 10th grade, and have learned more about math/physics in this thread than i have in my 10 years of math classes.

[LuizH]

The good an old Toricelli

[Prologue]

Im in 10th grade, and have learned more about math/physics in this thread than i have in my 10 years of math classes.

I have to say that the first time I really learned math was in my first physics class. I knew how to do math before, but didn't know what was really happening. The physics class opened my eyes big time. It is amazing that this stuff actually works, and I love that it does.