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A car of mass `m` is moving on a level circular track of radius `R` if `mu_(s)` represents the static friction between the road and tyres of the car, the maximum speed of the car in circular motion is given by.A. `sqrt(mu_(s)mRg)`B. `sqrt(Rg//mu_(s))`C. `sqrt(mRg//mu_(s))`D. `sqrt(mu_(s)Rg)` |
Answer» Correct Answer - d For smooth driving of the car force of friction = centripetal force `mu_(s) R = mu_(s) (mg) = (m upsilon^(2))/(R)` `upsilon = sqrt(mu_(s) Rg` . |
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