Type the letter corresponding to the best answer.$$

A cable BC$,$ holds a rigid steel bar AB$.$ Pin connection A has a bolt diameter of d $=5$ mm$.$ The allowable shear stress for the steel is $\backslash$tau allow $=300$ MPa. Let P $=4$ kN$.$

$1.$ What is the shear force on connection A in the y$-$direction?

$($Select A or B or C or D$)$

A$.3$ kN

B$.4$ kN

C$.5$ kN

D$.6$ kN

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$2.$ What is the shear stress at connection A$?$

$($Select A or B or C or D$)$

A$.38\mathrm{.}2$ MPa

B$.153$ MPa

C$.204$ MPa

D$.306$ MPa

$$

$3.$ Is connection A adequate in shear?

$($Select A or B or C or D$)$

A$.$ Yes

B$.$ No

C$.$ None of the above

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$4.$ What is the average bearing stress in bar AB at connection A$?$

$($Select A or B or C or D$)$

A$.75$ MPa

B$.150$ MPa

C$.153$ MPa

D$.306$ MPa