AIPMT MAIN 2008 Physics Centripetal Force MCQ Question
A roller coaster is designed such that riders experience "weightlessness" as they go round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top of the hill is between
13 m/s and 14 m/s
14 m/s and 15 m/s
15 m/s and 16 m/s
16 m/s and 17 m/s
Correct Answer
Detailed Explanation
Weightlessness occurs when the normal force is zero. Using the centripetal force equation, the speed is calculated to be between 14 m/s and 15 m/s.
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