(Solved):
Determine the force in member \( \mathrm{AB} \) (Ib with no decimal places), ...
???????
Determine the force in member \( \mathrm{AB} \) (Ib with no decimal places), input a positive value if in tension and a negative one if in compression. The following data apply: \[ \mathrm{d}=8 \mathrm{ft}, e=6 \mathrm{ft}, \mathrm{f}=4 \mathrm{ft}, P=1,000 \mathrm{lb} \]