PRACTICE PROBLEMS

For the given truss:

a$.$ Use Method of joints to determine forces in $NB,$ and $MB$

b$.$ Use Method of sections to determine forces in LK$,$ JD and DE$.($Hint: You can use inspection of joint $K$ to determine the force in KD$).$

Indicate whether the required members are in tension or compression.

Answers:

$F_{NB}=1300lb,T,F_{MB}=1300lbs,C,$

$F_{JD}=1697\mathrm{.}0563lb,T,F_{LK}=3800lbs,C,F_{DE}=1700lbs,T$