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In a cylindrical well of death , a motor...

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`

Text Solution

Verified by Experts

The correct Answer is:
D
Weight =Normal force on the wall `v=sqrt(gh)`
`=sqrt(9.8xx9.8xx10^(-1))`
`0.98 ms^(-1)`
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