Ladder problem, sum of forces and sum of torque

In summary, the student is requesting help with their online homework which includes a diagram. They are unable to copy and paste the content and are offering to send it through email. They have been struggling for 2 hours and are asking for an explanation of the solution, not for someone to do the problem for them. A suggestion is made to attach the document to the post on the forum. The student thanks the person for their help and mentions they will do so in the future.
  • #1
Jbreezy
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Homework Statement



Hello, My homework is online it would be to much trouble for me to type it all out it has a diagram with it. I cannot copy and paste it either. So if someone would be so kind as to message me I can send it through email as a word doc with a screen shot attached. I have been at it for 2 hours and it doesn't make sense. You don't even have to do the problem just explain the solution to me. Please and thanks,
Jordan

Homework Equations





The Attempt at a Solution

 
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  • #2
Physics forums has a provision of attaching the word document to your post. Please attach the document so that it is convenient for us too.

(If you have never done it before, click the "new reply" button below and in the window that appears, click on the paperclip icon on the menu (next to the smiley) and then attach your file.
 
  • #3
Hey I actualy got it thanks for telling me though I will do that in the future it is to much work to write the problem out sometimes. Thanks
 

FAQ: Ladder problem, sum of forces and sum of torque

1. What is the ladder problem and why is it important in physics?

The ladder problem is a classic physics problem that involves calculating the forces and torques acting on a ladder leaning against a wall. It is important in physics because it demonstrates the principles of static equilibrium and the application of Newton's laws of motion.

2. How do you calculate the sum of forces on a ladder?

The sum of forces on a ladder can be calculated by taking into account all the external forces acting on the ladder, such as the weight of the ladder and any applied forces. These forces can then be resolved into horizontal and vertical components, and the sum of these components should equal zero for the ladder to be in static equilibrium.

3. What is the significance of the sum of forces being equal to zero in the ladder problem?

The sum of forces being equal to zero in the ladder problem indicates that the ladder is in static equilibrium, meaning that it is not accelerating and is at rest. This is because for an object to be in equilibrium, the net force acting on it must be zero according to Newton's first law of motion.

4. How does the sum of torque come into play in the ladder problem?

The sum of torque is also important in the ladder problem as it determines whether the ladder will rotate or not. If the sum of torques acting on the ladder is equal to zero, the ladder will not rotate and will remain in static equilibrium. However, if the sum of torques is not equal to zero, the ladder will rotate until it reaches a point of equilibrium.

5. What are some common mistakes when solving the ladder problem?

Some common mistakes when solving the ladder problem include not considering all the external forces acting on the ladder, not resolving forces and torques into their components, and not using the correct sign conventions for forces and torques. It is important to carefully analyze and draw a free body diagram to accurately solve the problem.

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