A circular track of radios 100 meter is banked at an angle of 30 degree. If the coefficient of friction between the wheels of a car and the road is 0.5,
than what is the-
( i ) optimum speed of the car to avoid wear and tear on its tires ,
( ii ) and maximum permissible speed to avoid slipping ?
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Optimum speed = v₀ = [RgtanΘ]¹⁻₂R= 300theta = 15⁰g= 10so, v₀= √300 x 10 x ...
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