Consider a circular road of radius 20 me...

Consider a circular road of radius 20 meter banked at an angle of 15 degree. With what speed a car has to move on the turn so that it will have safe turn?

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`v = sqrt(vg tan theta) = sqrt(20 xx 9.8 xx tan 15^@) = sqrt(20 xx 9.8 xx 0.26) = 7.1 m//s`
The safe speed for the car on this road is `7.1 ms^(-1)`

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