> However, in many (most?) cases, the inelastic > collision will take longer to slow the object than > a pure spring would (when the constant is the > distance required to stop the object). If that is true then the "opposite " statement is true as well. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist