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AP Physics 1
2.9 Circular Motion
IntermediateMCQConceptual21.7k
A cross-sectional view of a car modeled as a rectangular block on a track surface inclined at an angle theta. A dashed horizontal line extends from the car to the center of its circular path, labeled R. A downward arrow from the car represents the gravitational force mg. An arrow perpendicular to the track surface and pointing away from it represents the normal force F_N.
A car traveling in a horizontal circle on a frictionless banked track.
A car of mass \(m\) travels at a constant speed \(v\) in a horizontal circle of radius \(R\) along a track banked at an angle \(\theta\) above the horizontal. Friction between the tires and the track is negligible. Which of the following correctly describes the magnitude of the normal force \(F_N\) exerted by the track on the car and provides a correct physical justification?

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