I am not a physics professional. I have just found an interest in physics on my own. My question is as follows: Imagine a 50 pound weight here on earth. It's mass has a weight of 50 pounds in 1g gravity. This mass, weighing 50 pounds, has a certain amount of resistance to acceleration (inertia). Now let's take this mass, which weighs 50 pounds, into an elevator, and have the elevator go into free fall. The mass would then be weightless and no longer have a weight of 50 pounds. Instead, it would have a weight of 0 pounds. Now that the mass weighs 0 pounds (weightless), does it become easier to accelerate? Also, let's take this same mass and now put it into an upward accelerating elevator with an acceleration of 2g. This mass now weighs 100 pounds in this 2g gravity. Now that the mass weighs 100 pounds, does it become harder to accelerate?