@MisterShin: Kind of nitpicking some details that don't really need to be nitpicked (like if it was a telekinetic feat or just a physical one becuase it does not matter, he has the ability to exert that type of force not to mention the population of people in DBZ is actually quite small). But gravity in deep space is less than around the atmosphere. In any case, you're both missing terminal velocity (which is to say there is a max velocity and human sized being and shape would reach).
Best if you 2 look those up. Once again, if any of us had the momentum, we could punch a non orbital, non directional force exerting object with the same devastation as a Super hero due to the constant acceleration due to gravity and terminal velocity (good example of PIS feats are things that break the rules of physics without any explanation - Flash's speed force is a fairly good fictional reason for breaking some rules of physics, Superman holding up a plane when it is crashing is actually a bad feat as anyone doing that is going to crack the plane into two pieces where they grab it).