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What is an example of circular motion where the inward force is a normal force? What...

What is an example of circular motion where the inward force is a normal force? What is an example of circular motion where the inward force is friction? What is an example of circular motion where the inward force is the sum of more than one force?

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In death well when the biker moves in a circular motion along the circumference of the well a component of normal force helps to provide centripetal force.
When a car is moving on a banked road then the component of frictional force makes centripetal force and allows the vehicle to remains sable.
When the Roller coaster is upside down its weight and normal reaction both increase the centripetal force

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