![]() An acceleration of just 16 g's for an extended time period can be deadly also. It seems that the duration of the acceleration is quite important. G-force is a measure of acceleration or deceleration, which is the change in speed over time. However, it also says that some people may have survived accelerations up to 100 g's. Wikipedia's g-force tolerance page lists 50 g's as "likely death". Then what kind of accelerations can a human body withstand? In a previous episode of Mythbusters - the jumping from a building with bubble wrap one, they state that stunt men aim for a maximum acceleration of 10 g's. But wouldn't that be cool? If there was some force field that could stop you (or shoot you off like a bullet) without causing damage? Yes. The only force that pulls on all parts of a body would be the gravitational force (since all the parts have mass). No inner spring compression means no body damage. What if there was some long range force to accelerate this two-ball model of a body? If this same force was on both balls in the model, you could get a super high acceleration without having to compress the inner spring. It is by far the weakest known force in nature. ![]() So, large accelerations can cause damage. gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. This is where the damage comes into play. ![]() If this spring is compressed too much, it could break. The greater the acceleration, the greater this spring force must be and the more compressed the inner spring will be. This means that the force the inner spring exerts on the top ball must be greater than the gravitational force. The g force acting on particles is exponential to the speed of rotation defined as revolutions per minute (RPM). Since it has to accelerate up, it must have a net force pointing upwards. What is Relative Centrifugal Force The relative centrifugal force (RCF) or the g force is the radial force generated by the spinning rotor as expressed relative to the earths gravitational force. If the body falls and collides with the ground, it must accelerate in the upward direction. In this model, there are two balls connected by a spring.
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