## Question

###### In Fig. $12-7$ and the associated sample problem, let the coefficient of static friction $\mu_{s}$ between the ladder and the pavement be $0.53 .$ How far (in percent) up the ladder must the firefighter go to put the ladder on the verge of sliding?

In Fig. $12-7$ and the associated sample problem, let the coefficient of static friction $\mu_{s}$ between the ladder and the pavement be $0.53 .$ How far (in percent) up the ladder must the firefighter go to put the ladder on the verge of sliding?

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