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QAIPMT-2008-Ph-2278: NEET 2008 Physics - Class 11 AIPMT-2008-Ph-2278 Solution: A roller coaster is designed such that riders experience…
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
Multiple Choice Options
- A 16 m/s and 17 m/s
- B 13 m/s and 14 m/s
- C 14 m/s and 15 m/s
- D 15 m/s and 16 m/s
Step-by-Step Verified Solution
For the riders to experience weightlessness
at the top of the hill, the weight of the rider must
be balanced by the centripetal force.
i.e., m g = m v 2 R
_ v = g R = 10 _ 20 = 14.1 m s _ 1
Hence, the speed of the car should be between 14 ms �1 and 15 ms �1 .