Do roller coasters have G Force?
Do roller coasters have G Force? Several forces are felt when riding a coaster, and keeping these within safe values is a vital skill for coaster designers. These forces are known as G-Forces or “G's”.
Why do I black out on roller coasters?
This high G-force can push heads down and have blood rush from your brain down to your feet, which in turn lowers the oxygen level in your brain, which may lead to gray outs, loss of peripheral vision (known as tunnel vision), or temporary blindness.