Whips are not, strictly speaking, throwing weapons.
Whips are an interesting branch of throwing or casting sorts of actions.
When cracked correctly, most of the whip's energy is transferred outward, to accelerating the fall, but at the moment of maximum extension, an energy wave is transferred back down the whip and can be felt as a distinct momentary tug on the fingers holding the whip handle. My personal collection contains two whips from Peter Jack of New Zealand, and two from Joe Strain of Idaho. Both of these whip makers are listed and described below. Peter has a web site, Joe, as of this date, does not. For starters, here are the names and descriptions of some little mentioned short whips used in the martial arts.