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Sep28-03, 10:42 AM
P: 17
I think that the simpler spring with variable K elastic constant could be made from rubber.
When you stretch this rubber spring the elastic constant would take a value K (the value of K depends on who hard is the rubber).
On the other hand during the compression of the spring the value of the elastic constant is K=0.
Iím not sure if practically a rubber spring could work but theoretically it is possible.