Originally posted by Cosmic Cube
Please tell me how anything that you've said relates to Superman's physical strength, in relation to moving a planet.When did I say anything about the SUV being in motion?
ok, moon, moving at X speed, weighing Y and being held in place by a gravitational force of Z. i forget the equation for inertia, but it would relate to X and Y, while Z is important because, well, if superman cannot account for Z, the moon and earth will crash into eachother
so, lets move slowly.
Superman needs to move the moon. He will first have to stop its inertia, then redirect it based on its gravitational force and the earth's so that it orbits the earth again and does not crash into it (This may be a more increadable feat as the moon is in a very ideal place for life on earth, any signifigant change either closer or farther away could cause huge disturbances)
So, he begins flying at the moon (ok, so he is only responsable for 1/3 of all this force, as wonderwoman and MM are helping) and pushing against it with a force that MUST BE equal to XY, or else the moon will not stop. Period. Since it is travelling through a space (for all intents in this situation it might as well be a vaccum) there will be no friction to aide in slowing down the moon. Then, he will have to combat gravity which would want to either A) keep the moon in orbit or B) bring it crashing to earth. My math skills arent very good, but i think this means that the force supes must be applying is (XY + Z)/3
since you will not agree that superman's thrust is equivellant to his strength, this only sets up a more complex explination.
if we made a rocket with (XY + Z)/3 force and sent it to move the moon, it would crash on the surface and blow up. This is because the strength of the rocket cannot withstand (as newtons 3rd law states) the equal (XY + Z)/3 force being applied back against it.
let me dumb this down. lets say it takes 1 unit of force to move a metal ball. if i throw an egg with 10 units of force, it is unlikely that the ball will move since the strength of the egg's shell would require less than 1 unit to break.
how does this apply to superman?
ok, so, we have superman giving it his all and making the necessary force to move the moon [(XY + Z)/3 units of force]<as an aside, what is the unit of force, i think jouls or something>. Yes, the creating of this force is in his "thrust" not his general muscular strength. HOWEVER, it would require that superman's strength be at least equal to (XY + Z)/3 or else he would just crash into the moon, like the rocket or egg.
Another example:
Try doing a handstand. to do this, you must have the equivelant strength in your arms to hold your body weight up under the force of gravity. If you started having a friend push down on your legs (same effect as thrust) you may not be able to keep yourself upright. So, if Supes arms could not take the thrust he was producing, he would not be able to use them to move the moon.
wow...