Originally posted by FrothByte
Yes and no. A haymaker is a very powerful blow, but it is very slow and cumbersome. A jab on the other hand is the fastest known punch to man, but it is not exactly a strong punch.Velocity does have a big effect on the power of your punch, but force behind the punch is a bigger factor. Bigger, heavier people are usually able to deliver stronger punches than smaller people. Not because they punch faster, but because they put more weight (and thus force) behind their punch.
If we went with the logic that great punching strength = great speed then Hulk and Kurse would also have super speed.
Force = Mass x Acceleration.
Supes/Zod's Mass stays constant. Probably the same as a normal human of their size and weight (pavements aren't cracking under their weight, nor do cars buckle under Clark's weight, planes can still fly etc)
So their fists (and thus, their arms) must be accelerating to incredible levels in order to generate the force necessary.