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A roller coaster is designe such that ri...

A roller coaster is designe such that riders experience "weightlessness" as they go round the top of a hill whose radius of curvature is 20m. The speed of the car at the top of the hill is between

A

13 m/s and 14 m/s

B

14 m/s and 15 m/s

C

15 m/s and 16 m/s

D

16 m/s and 17 m/s

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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-Assignment (SECTION-C)
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  9. A mass m moving horizontal (along the x-axis) with velocity v collides...

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