[Phys-L] Re: stretch it a bit

[John Denker <jsd@AV8N.COM>]

Anthony Lapinski wrote:
> All other factors remaining the same, why are shorter springs stiffer
> (higher k) than longer ones? If you cut a spring in half, the spring
> constant of either half is twice that of the original spring. What is the
> easiest way to analyze this?

The shorter spring has half as much _compliance_.

There is an analogy to electronics, as shown in the following table:


                   series           parallel
               +-----------------------------------------
  resistors    |  resistance       conductance
               |
  springs      |  compliance       spring constant
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