Question

9. Centrifugal forces resulting from riding a roller coaster can be a challenge to your blood pressure, as blood trends to flow to your legs instead of your carotid arteries and aorta. A similar effect takes place as you wake up every morning. How does your body cope with these sudden changes in blood pressure?

Answer 1

A roller coaster is a machine that uses gravity and inertia to send a train of cars along a winding track. centrifugal force is not atrue force but rather the result of an objects inertia,or resistance to change in direction as the object moves in cercular path. this centripetal force actually points towards the centre of the circle but a roller coaster rider experiences the sensation of a centrifugal force The following equation express centripetal acceleration,

ac = v2/r, centripetal force simply multiply by the mass.

Where ac is centripetal acceleration, v is velocity and r is radius of circular path.

Roller coaster rely on gravity, which makes them fun because of its physical effects on the body. gravity constantly pulls a body toward earth as momentum propels the train up, down, and around the track, A person feels to pressure against his or her body as gravity and momentum fight for control. the human body can endure very high G forces for a short time. some people who rode a roller coaster had an increased heart rate that could cause, an irregular heart beat in some individuals. The mental and physical stress from riding on the roller coaster was comparable to a fast game of tennis. people with high blood pressure, a previous heart attack, an implanted pacemaker and others with proven heart disease, should not ride a roller coaster. On a roller coaster, the G force can get much higher than you feel in normal experience, and for many people thats a part of fun. but the sensation of being pushed around in your seat is not only the effect, because as the G forces increase, you weigh more. if you weigh 150 pounds and you experience 2 G you are feeling it would be like to weigh 300 pounds in normal gravity.

At normal gravity your blood pressure is naturally higher in your feet than in your head, and your heart and circulatory system is used to working with that. as the roller coaster shakes your body back and forth, and your head wobbles around on top your neck muscles need to rapidly adjust to compensate for all sudden movements. In the ride of roller coaster your blood is flooded with your hormones. if you going fast enough, the force can be enough to slow or even stop the flow of blood to your brain and eyes.this can cause a loss of vision. if you are wake up in morning after a ride of roller coaster you feel some nauseous, tight neck muscles, muscles restrict the blood flow in your head so less blood making you can feel very tired.

The sudden changes are

The heart rate may be increase at the rate of 30% and a higher rate in breathing before ride and after a ride.

your blood moves towards your feet

your body gets pushed backwards even its going forwards

your organ float inside you

your heart pumps blood in the wrong direction