- #1
KABOOM_physics
- 5
- 0
This was a problem on an exam that our professor later discovered was unsolvable THE WAY HE POSED THE QUESTION. First off, it's important to note that this is from a statics class, therefore Fnet = 0 will be true for all problems in our course.
So here's my thoughts on this and I would like to see if anyone else agrees with me or if I'm just completely way off.
If rope EAD has a tension force of 980N, the so should the AD segment of that rope. The z component of AD should have a F = 980cos(1/sqrt(8)) in the positive z direction. Since there are no other forces with components in either z direction, it would imply that the arrangement has not settled and will move. which would imply that Fnet does not = 0. Also I understand that the center ring can act as a pulley (which in this problem has no mass or friction), however it is not a fixed pulley. So wouldn't the Fnet for each component (x,y,z) have to equal 0 individually?
Any help or insight to create a proper response is much appreciated.
Thanks,
Steve
So here's my thoughts on this and I would like to see if anyone else agrees with me or if I'm just completely way off.
If rope EAD has a tension force of 980N, the so should the AD segment of that rope. The z component of AD should have a F = 980cos(1/sqrt(8)) in the positive z direction. Since there are no other forces with components in either z direction, it would imply that the arrangement has not settled and will move. which would imply that Fnet does not = 0. Also I understand that the center ring can act as a pulley (which in this problem has no mass or friction), however it is not a fixed pulley. So wouldn't the Fnet for each component (x,y,z) have to equal 0 individually?
Any help or insight to create a proper response is much appreciated.
Thanks,
Steve