In a cylindrical well of death , a motor cyclist rides around the inner wall in horizontal circles. If the diameter of well of death is 18 m , then th
In a cylindrical well of death , a motor cyclist rides around the inner wall in horizontal circles. If the diameter of well of death is 18 m , then the minimum speed of cyclist , so as to prevent him from sliding down will be `(mu=0.8 and g=10 m//s^(2))`
A. `1.06 m//s`
B. `10.6 km//s`
C. `0.106 m//s`
D. `10.6 m//s`
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Correct Answer - D
Weight =Normal force on the wall `v=sqrt(gh)`
`=sqrt(9.8xx9.8xx10^(-1))`
`0.98 ms^(-1)`
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