A$)$ Determine if the man is able to move the crate using the rope$-$and$-$pulley system shown.

The man cannot move the crate.

In $($Figure $1),$ the man has a mass of $85kg$ and the crate has a mass of $150kg.$ The coefficient of static friction between his shoes and the ground is ${}_s=0\mathrm{.}4$ and between the crate and the ground is ${}_d=0\mathrm{.}3.$

Figure

$1$ of $1$

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Part B

$$ Prove your answer to part A by calculating the static frictional force $F$ between the man's shoes and the ground required to move the crate and the maximum static frictional force $F_{\text{m}\text{a}\text{x}}$ which can be developed.

Express your answers in newtons to three significant figures separated by a com$\_$ma$.$

$F,F_{\text{m}\text{a}\text{x}}=$

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