[mentor's note: the following posts were split off a thread in General Physics:
The only one that comes to mind is the GWB force. It was thought to be of relatively short duration but has demonstrated a much longer lasting effect. The phenomenon itself seems to defy physics (and science altogether). Although GWB is touted by those closest to it, to be a steady-state or "stay the course" force, most would categorize it as a constant jerk phenomenon.but that does not work, I need net force.
in other words, I only care whether or not a constant jerk can exist.
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