Even balance weight or even something else, that's thequestion.

[Ron Nossaman]

>Inertia takes over when a body is accelerated faster than gravity (16 ft 
>per second squared?).

The 16fps^2 is right for acceleration by earth's gravity field at sea 
level, but inertia works the same at any speed, and by any means or rate of 
acceleration (+-).

For what it's worth.

Ron N