Determine the tension in cables AB and AC and the force along AE

If cable AD is tightened by a turnbuckle and
develops a tension of 1300 lb, determine the tension
developed in cables AB and AC and the force developed

[TheLychie]

3:27 -> vector AC should be -15i - 10j -30k

[Yeeter_Inbound]

wow i was really overthinking this problem when i first saw it. thank you for the easy explanation

[diaff]

there is a mistake for AC he put AC=-15i+0j-30k when it is supposed to be -15i-10j-30k

[jenellecandole]

Where did 646 get?? Why did you change the .285?

[josephgavia-vargas]

Determine the position (x, y, 0) for fixing cable BA so
that the resultant force exerted on the pole is directed along
its axis, from B toward O. Also, what is the magnitude of
the resultant force?

[hollyduckett]

Can I email you a new problem in the 15th edition to help with please? Your videos have helped me tremendously

[jonielclemente]

where`d you get the value of 500 and -1200?

[adrianandrade]

how come you are multiplying equation one by the ratio of .429/.285