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Re: Test problem



Simply a typo--I certainly meant 1/3.

Rick

----- Original Message -----
From: "Stuart Leinoff" <Leinoffs@ACC.SUNYACC.EDU>

Why is the "effective mass" of the spring one half of its total mass. I
have always used 1/3 of the total mass and also gotten very good results
(which is not surprising since the spring mass is generally a very small
part of the total oscillating system).

I thought that the 1/3 number comes from some complex DE analysis (that I
don't do any more ;-))

Stu Leinoff
Adirondack Com Col