Multiple Choice
An I-beam having a mass of 810 kg and length of 5.1 m has one end attached to a vertical wall. The I-beam is allowed to pivot up and down about the attachment location. A cable is then attached from the vertical wall to the other end of the I-beam. The cable makes an angle of 31º with the I-beam, and the I-beam is horizontal (parallel with the ground) . The horizontal pin force at the pivot is
A) 8100 N.
B) 4200 N.
C) 6600 N.
D) 3800 N.
Correct Answer:

Verified
Correct Answer:
Verified
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