Hello, I'm an undergraduate in biomedical engineering, physics, chemistry, and pure mathematics. As you all know, a human can travel at any velocity he/she chooses. The problem arises when the human accelerates to a high velocity in a short period of time (or in other words, accelerates too fast). I was pondering a question about how to decrease the force felt by the human body in motion and therefore increasing the rate at which that person can accelerate. Obviously, the technology is beyond our grasp, but let's say we could induce a gravitational field in any direction we pleased on an aircraft. If we induced a field in the opposite direction of force we felt when we accelerated, could we decrease the amount of force felt..or is that just a hopeful wish? At first I said it was impossible and I still stand by that. But I thought of a classical problem that I need an opinion on. In classical physics, if you take a car (a corolla) and you run it into a wall at 50 mph...it will be damaged in such a way that 25% of the car will be compressed. If that same car is traveling at 100 mph 50% of the car will be compressed in the form of damage. Now, if you run TWO corolla's into each other, both at 50 miles per hour...what is the damage of each car. It has been tested and found that each car experienced only 25% damage compression. This makes sense because the velocity of each car, respectively, does not imply a force. It's the negative acceleration of the car at an instantanious juncture of collision that determines the force. For example: the 50 mph car had an acceleration of -50 as it went from 50mph to 0mph...that multiplied by its mass provided enough force to compress the car to compress it 25% of its length. The 100mph car had an acceleration of -100 since it went from 100mph to 0 mph, and that times its mass provided enough energy to compress the car by 50% of it's original length. Now, when 2 cars of equal mass collide at 50 mph, both denote 25% damage EACH. It's because each car acts as a solid non-moving object with reference to the one colliding into it. Better put, both cars, even though their net velocity was 100mph (both going 50 mph) they only accelerated negatively from 50mph to 0 mph upon collision. But what If you only had one mass? You stand on the earth and even though you feel the constant acceleration of gravity, you are held up by the natural force (in a vague sense of that definition). Would it be possible to match the acceleration of a plane from 0 mph to 2000mph in 30 seconds (which would kill you) by inducing some kind of force in the same direction of your acceleration (or the opposite direction of the force acting upon you as you move through the atmosphere)...and thereby decrease the amount of force felt on the mass...allowing it to accelerate faster than it normally would be able to without inducing death?