Consider the frame shown in $($Figure $1).$ Take $P=4kN.$ Follow the sign convention:

Part A

Determine the internal normal force at point $D.$

Express your answer to three significant figures and include the appropriate units.

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Hint $1.$ Determining support reactions

Draw the free$-$body diagram of each member and indicate all wo$-$force mambers. Recall that reactive forces common for two mem

Hint $2$ Determining the internal normal force

Pass an imaginay section through the left member, perpendicular to its axis at point $D$ Choose one of the segments, $AD$ or $DB$

$N_D=$

$kN$

X Incorrect; Try Again; $4$ attempts remaining

You may have used an incorrect expression for the moments of the loads.

You may want to review Hint $1.$ Deternining sypport reactions.

Part B

Determine the internal shear force at point $D.$

Express your answer to three significant figures and include the appropriate units.

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$1$

Stumition

Previous Anwwere

Correct

Here we leam how to determine the internal shear force acting at a point in the frame subjected to a given distributed load.

Part C

Determine the internal bending moment at point $D$

Express your answer to three significant figures and include the appropriate units.

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Figure

$1$ of $1$

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