Question

Use the equation mg sinθ = u mg cos θ to determine the steepest slope of a street on which a car with rubber tires can park without sliding.

Answer 1

\[\mu=\frac{ \sin \theta }{ \cos \theta }=\tan \theta\]

Answer 2

So, \[\theta=\tan^{-1} \mu\]

Answer 3

The mg on each side cancels out