A circular road of radius 1000m has hang...

A circular road of radius `1000m` has hanging angle `45^(@)` The maximum safe speed (in `ms^(-1)` of a car having a mass `2000kg ` will be (if the coefficient of friction between tying and road is `0.3)`

A

`172 m//s`

B

`124 m//s`

C

`99 m//s`

D

`86 m//s`

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The correct Answer is:

A

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