How long before you vomit on a rollarcoaster?

The time it takes to vomit on a rollercoaster varies significantly between individuals, depending on factors like motion sickness susceptibility, the intensity of the ride, and whether they have eaten recently. Some people may feel nauseous shortly after the ride begins, while others might not experience any discomfort at all. Generally, if someone is prone to motion sickness, they could feel queasy within a few minutes of the ride starting. Taking precautions, like avoiding heavy meals before riding, can help reduce the likelihood of vomiting.