Free body diagram for all forces

AI Thread Summary
The discussion focuses on drawing a free-body diagram for a knot connecting two ropes to a steel cable supporting a weight. Participants emphasize the importance of accurately representing the tension vectors T1 and T2, which should align with the direction of the steel cable. The third tension vector, T3, is clarified to point downward, as it originates from the cable's support of the weight. The relative lengths of the vectors are crucial for grading, though their exact lengths are not. Proper orientation and representation of all forces are essential for completing the assignment successfully.
monsteruf
Messages
2
Reaction score
0

Homework Statement


Two ropes are connected to a steel cable that supports a hanging weight as shown in the figure.

Draw a free-body diagram showing all of the forces acting at the knot that connects the two ropes to the steel cable.
Draw the force vectors with their tails at the knot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.

Homework Equations

The Attempt at a Solution


They give me vector T1, T2, and T3. I'm trying to use T1 which is the tension to the left and put it in the direction of the steel cable and the same for T2, but I do not know about T3.

Here is a picture : http://imgur.com/kEPYYle
 
Physics news on Phys.org
The third tension comes from the third part of the cable. (There's three parts of the cable connected to the knot.)
 
Nathanael said:
The third tension comes from the third part of the cable. (There's three parts of the cable connected to the knot.)
So it should be pointing down?
 
monsteruf said:
So it should be pointing down?
Yep
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Potential Mistake in Free-Body Diagram
Replies
5
Views
2K
Pulleys with Torque: Free Body Diagram Analysis
Replies
34
Views
3K
Is it friction or tension acting on the person hanging on a rope?
Replies
4
Views
1K
Free Body Diagram of Mass-Spring System
Replies
5
Views
1K
Analysis of Forces Acting at Knot in Tension Rope Figure
Replies
13
Views
10K
When are reactive forces enough to support this body?
Replies
14
Views
1K
Solving Free-Body Diagrams for Moving Nuts on Rods: Tips and Techniques
Replies
9
Views
2K
Finding Radial Force from Free Body Diagram
Replies
4
Views
2K
Rocket + Connected Body Dynamics problem
Replies
47
Views
3K
Statics free body diagram (frames and machines)
Replies
5
Views
4K

Hot Threads

Recent Insights

Back
Top