- #1
physicsss
- 319
- 0
problem says knowing radius of each pulley to be 7.2 in, neglect friction, find internal forces at point J of the frame.
1st question that I have is whether the tension in section C-E of the cable also 90 lb? how about section C-D. Also, in my diagram of each of the members, I don't know how to label forces at point E where two long members and the pulley meet.
Finally, can someone gimme an idea how to go about doing this problem?
http://img487.imageshack.us/img487/8272/15am.jpg
http://img487.imageshack.us/img487/4066/14ch.jpg
1st question that I have is whether the tension in section C-E of the cable also 90 lb? how about section C-D. Also, in my diagram of each of the members, I don't know how to label forces at point E where two long members and the pulley meet.
Finally, can someone gimme an idea how to go about doing this problem?
http://img487.imageshack.us/img487/8272/15am.jpg
http://img487.imageshack.us/img487/4066/14ch.jpg
Attachments
Last edited by a moderator: