I get a minimal peak of two.5R. So if the loop is 4 meters excessive (with a radius of two meters), the automobile must begin 5 meters above the bottom to simply make the loop. After all, this assumes there is no power loss as a result of friction; you’d most likely need to begin a bit increased to account for that.
However Not Too Excessive …
In reality, why minimize it shut? Why not simply begin a lot increased and remove all doubt? The reason being that the sooner the automobile goes, the upper the g-forces skilled by the motive force within the loop.
Let’s take into consideration this: In the event you launch a automobile in order that it goes across the loop at minimal pace, there can be zero drive from the observe (FT). You’d really feel weightless—zero g’s—for an instantaneous. If the automobile is launched from a peak higher than 2.5R, its velocity can be higher than the minimal on the high of the loop. With the intention to nonetheless transfer in a circle, the gravitational drive wouldn’t be sufficient. The observe would additionally need to push down on the automobile. This is able to create a g-force higher than zero.
Let’s return to the video of the true stunt. By evaluating the loop to the bystanders, I am guessing it has a radius of two meters. The automobile is clearly launched from a peak above the 5-meter minimal—for example it is 8 meters. The drive on the high of the loop (divided by the load, to get it in g’s) can be 3 g’s. It is potential for people to face up to as much as 20 g’s, so this must be high-quality.
However should you go excessive? In the event you begin too excessive and make the loop too small, dangerous issues can occur. What a few peak of 20 meters with a 1.5-meter radius for the loop? This is able to produce a drive of 21 g’s. It’d look cool, however it additionally may kill you. That is not enjoyable anymore.
