In a well of death, motor cycle rides round the inner wall of a hollow cylindrical chamber. If the radius of the cylindrical chamber is 8 m . What wou
In a well of death, motor cycle rides round the inner wall of a hollow cylindrical chamber. If the radius of the cylindrical chamber is 8 m . What would be minimum speed of the rider to prevent him from sliding down? `(g=10 m//s^(2), mu =0.2)`
A. `10 m//s`
B. `20 m//s`
C. `30 m//s`
D. `40 m//s`
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