Statics Questions: Help with Finding Correct Answers

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From there, you can calculate the tension in the tie and determine if it exceeds its maximum. If it does, then the tie is the first to reach its maximum and you can find the maximum load for the system. If not, then you can proceed with the moment method to calculate the tensions in both the jib and the tie. In summary, to solve this problem, first assume that the maximum in the jib element is reached first and use static equilibrium equations to find the maximum load. If the tension in the tie does not exceed its maximum, then that is the maximum load. If it does, then use the moment method to calculate the tensions in both elements and determine the maximum load.
  • #1
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The first picture is the question picture.
The second picture is my calculation for this questions.
I can't find the correct answer, everybody know why?

Thanks
 

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  • #2
You seem to be applying both maximum forces at the same time. It won't be the case that for a given load the maximum force occurs in both elements simultaneously; one will reach its maximum before other (but you can't tell which yet).

So, start by assuming that the maximum in the jib element is reached first. Set up static equilibrium equations and solve for the tension in the tie. Does it exceed its maximum? If not, find the load and this will be your maximum load. If it does, then clearly the tie maxes out first so redo the calculations beginning with the tie tension set to maximum.
 
  • #3
supplementary one of my problems.
Is't necessary the moment method to solve this questions?

Thanks
 
  • #4
qpzm77gg said:
supplementary one of my problems.
Is't necessary the moment method to solve this questions?

Thanks

It should be sufficient to realize that for stasis to hold, the sum of the forces acting at point C should be zero.
 
  • #5
for reaching out for help with finding the correct answers to your statics questions. It's great that you are actively working on solving the problems and seeking assistance when needed. Based on the second picture you provided, it seems like you have made a good attempt at solving the problem. However, without seeing the actual question and knowing the specific steps and calculations you took, it is difficult to determine why you are having trouble finding the correct answer. It could be a simple mistake in one of your calculations or a misunderstanding of the problem itself. I suggest double checking your work and if you are still struggling, consider reaching out to your professor or a classmate for further clarification. Remember, asking for help is a sign of strength and determination to understand the material. Keep up the good work!
 

1. What is statics and why is it important in science?

Statics is the branch of mechanics that deals with the analysis of forces acting on objects that are at rest or in a state of constant motion. It is important in science because it helps us understand the behavior of structures and systems under different types of loads. This knowledge is crucial in fields such as engineering, architecture, and physics.

2. What are the fundamental principles of statics?

The fundamental principles of statics are the laws of equilibrium, which state that an object will remain at rest or in a state of constant motion unless acted upon by an external force. These principles include the three laws of motion defined by Sir Isaac Newton.

3. How do I solve a statics problem?

To solve a statics problem, you must first identify all the forces acting on the object or system. Then, you can use the principles of equilibrium to set up equations and solve for the unknown forces and/or moments. It is important to draw accurate free-body diagrams and use proper vector notation in your calculations.

4. Can statics be applied to real-life situations?

Yes, statics can be applied to real-life situations in various fields such as architecture, civil engineering, and mechanics. For example, understanding the forces acting on a building or bridge is crucial in ensuring its structural stability and safety.

5. What are some common types of statics problems?

Some common types of statics problems include determining the forces acting on a stationary object or system, finding the center of gravity of an object, and solving for the reactions at supports in a structure. These problems can involve a combination of forces, moments, and vectors.

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