The coefficient of static friction between the tires of a car and the street is μ_s = 0.67.Of the following,what is the steepest inclination angle of a street on which a car can be parked (with wheels locked)without slipping? A) 29° B) 39° C) 34° D) 44° E) 31°

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Quizplus · Accepted Answer

The steepest angle θ at which a car can be parked without slipping is given by θ = arctan(μ_s). For μ_s = 0.67, θ = arctan(0.67) ≈ 34°.

The Coefficient of Static Friction Between the Tires of a Car