Re: A maximum possible acceleration ?

["Paul Camp" <pjcamp@coastal.edu>]

> We learn in Modern Physics that:
>
> dx*dp ~ h_    uncertainty of x    h_ = lower limit of this product
> dt*dE ~ h_    uncertainty of t    h_ = also a lower limit of product
> (dx/dt) < c   c speed of light    c = the upper limit of v (ratio)
>
> The existance of an upper limit for the first derivative suggests (?)
> that the second derivative (acceleration --> force) may also have an
> upper limit. I never heard about this, except in the context that a
> physical quantity can not change in zero time. 
>                                          Ludwik Kowalski

I can't see any obvious reason why the velocity graph could not 
approach its asymptote with an arbitrarily large slope. Practically, 
this probably can't happen for the reasons cited by Brian.

Paul J. Camp                   "The Beauty of the Universe
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