UTF-8Centrifugal reaction force
Centrifugal Reaction Force
Stopping the ball when it reaches the upper half of the circular track will cause it to fall off,
because of the lack of the centrifugal reaction force, which is proportional to the square of speed.11trueTrebuchet MS19trueTrebuchet MS161org.concord.modeler.PageTextBox350.0450.0<html>
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At the Earth's surface, all object experience a downward force due to
gravity. Objects traveling in a circle also experience an outward force,
known as centrifugal force. The speed of rotation and mass of the object
determine the amount of centrifugal force present.
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If the ball at the bottom starts with a speed that is high enough, it
can pass the highest point of the circular track without falling down,
as if some kind of force were holding it onto the track. However, if you
increase the mass of the ball, more speed is necessary to move the ball
around the track. This effect is called the centrifugal reaction force.
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In fact, you may experience the centrifugal reaction force every day.
Have you ever felt as if you were being pulled out of the car or roller
coaster when going around a corner?
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