Suppose that $P_1=480lb$ and $P_2=360lb.($Figure $1)$

Figure

$1$ of $1$

Part A

Determine the force in member $AB$ of the truss.

Express your answer in pounds to three significant figures. Enter negative value in the case of compression and positive value in the case of tension.

$F_{AB}=$

$lb$

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Part B

Determine the force in member $AC$ of the truss.

Express your answer in pounds to three significant figures. Enter negative value in the case of compression and positive value in the case of tension.

$F_{AC}=$

lb