A roller coaster is designed such that riders experience “weightlessness” as they go around the top of a hill whose radius of curvature is 20 
speed of the car at the top of the hill is between
A
16 
and 17 
and 17
B
13 
and 14 
and 14
C
14 
and 15 
and 15
D
15 
and 16 
and 16
Text Solution
Verified by ExpertsThe correct answer is:
C
: 
i.e., Between 14and 15m/s.
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