Original publication data, along with alterations and additional information.
Law I: Any body suspended in space will remain in space until made aware of its situation.
Daffy Duck steps off a cliff, expecting further pastureland. He loiters in midair, soliloquizing flippantly, until he chances to look down. At this point, the familiar principle of 32 feet per second per second takes over. However, he will not necessarily fall immediately. He may be given the chance to run (on air) back toward the precipice before he begins to accelerate downwards. He usually cannot run fast enough, and starts to fall JUST before his arms can reach the edge.
Nor does he necesarily always accelerate at 32 feet per second per second, but often reaches a high velocity instantaneously. Also, this high velocity causes tidal forces such that his arm stretches (while the rest of him falls) long enough to wave bye-bye.
Law II: Any body in motion will tend to remain in motion until solid matter intervenes suddenly.
Whether shot from a cannon or in hot pursuit on foot, cartoon characters are so absolute in their momentum that only a telephone pole or an outside boulder retards their forward motion absolutely. Sir Isaac Newton called this sudden termination of motion the stooge's surcease.
Law III: Any body passing through solid matter will leave a perforation conforming to its perimeter.
Also called the silhouette of passage, this phenomenon is the speciality of victims of directed-pressure explosions and of reckless cowards who are so eager to escape that they exit directly through the wall of a house, leaving a cookie-cutout-perfect hole. The threat of skunks or matrimony often catalyzes this reaction.
Law IV: The time required for an object to fall twenty stories is greater than or equal to the time it takes for whoever knocked it off the ledge to spiral down 20 flights to attempt to capture it unbroken.
Such an object is inevitably priceless, thus the attempt to capture it will be inevitably unsuccessful.
Law V: All principles of gravity are negated by fear.
Psychic forces are sufficient in most bodies for a shock to propel them directly away from the earth's surface. A spooky noise or an adversary's signature sound will induce motion upward, usually to the cradle of a chandelier, a treetop, or the crest of a flagpole. A character's feet when running or the wheels of a speeding auto need never touch the ground, especially when in flight.
Law VI: As speed increases, objects can be in several places at once.
This is particularly true of tooth-and-claw fights, in which a character's head may be glimpsed emerging from the cloud of altercation at several places simultaneously. This effect is common as well among bodies that are spinning or being throttled. Only at manic high speeds, the wacky guy may ricochet off walls to achieve the velocity required.
Law VII: Certain bodies can pass through solid walls painted as tunnel entrances; others cannot.
This trompe l'oeil inconsistency has baffled generations, but at least it is known that whoever paints an entrance on a wall's surface to trick an opponent will be unable to pursue him into this theoretical space. The painter is flattened against the wall when he attempts to follow into the painting. This is ultimately a problem of art, not of science.
Corollary: Portable holes work.
Law VIII: Any violent rearrangement of feline matter is impermanent.
Cartoon cats posses even more deaths than the traditional nine lives might comfortably afford. They can be decimated, spliced, splayed, accordion-pleated, spindled, or disassembled, but they cannot be destroyed. After a few moments of blinking self pity, they reinflate, elongate, snap back, or solidify.
Corollary: A cat will assume the shape of its container.
Law IX: Everything falls faster than an anvil.
Law X: For every vengeance there is an equal and opposite revengeance.
This is the one law of animated cartoon motion that also applies to the physical world at large. For that reason, we need the relief of watching it happen to a duck instead.
A) A sharp object will always propel a character upward.
When poked (usually in the buttocks) with a sharp object (usually a pin), a character will defy gravity by shooting straight up, with great velocity.
B) The laws of object permanence are nullified for cool characters.
Characters who are intended to be "cool" can make previously nonexistent objects appear from behind their backs at will. For instance, the Road Runner can materialize signs to express himself without speaking.
C) Explosive weapons cannot cause fatal injuries.
They merely turn the character black and smoky. It appears that the clothing of the character absorbs the full force of the explosion, protecting the body inside. This results in shredding and tearing of the character's clothing.
D) Gravity is transmitted by slow-moving waves of large wavelengths.
Their operation can be witnessed by observing the behavior of a canine suspended over large vertical drop. Its feet will begin to fall first, causing its legs to stretch. As the wave reaches its torso, that part will begin to fall, causing neck to stretch. As the head begins to fall, tension released and the canine will resume its regular proportions until such time it strikes the ground.
E) Dynamite is spontaneously generated in "C-spaces" (spaces in which cartoon laws hold).
The process is analogous to steady-state theories of the universe which postulated that the tension involved in maintaining a space would cause the creation of hydrogen from nothing. Dynamite quanta are quite large (stick sized) and unstable (lit). Such quanta are attracted to physic forces generated by feeling of distress in "cool" characters (see Amendment B, which may be a special case of this law) who are able to used said quanta to their advantage. One may imagine C-spaces where all matter and energy result from primal masses of dynamite exploding. A big bang indeed.
F) Any bag, sack, purse, etc. possessed by a cool character is a tesseract.
Any number of objects of any size may be placed in it or removed from it with no change in its outer dimensions.
G) Characters can spin around and change into any set of clothes appropriate to the situation.
H) Rabbits can dig a burrow from here to there in less than 20 seconds and emerge spotlessly clean.
I) Movements are accompanied by funny sound effects.