Okay, here is the problem:
If the elastic limit of copper is 1.50E8 N/m2, determine the minimum diameter a copper wire can have under a load of 10.5 kg if its elastic limit is not to be exceeded.
Obviously I am looking for d in this problem. I am given the downward force (102.9 N = ma); A =...
The elevator is going upward. I don't understand why you would add them, however.
That is the correct answer, but since we have a test tomorrow, I want to be sure I understand it much more than get a point on a silly assignment.
Here's how it is playing out in my mind:
A block is being pulled...
I actually have just about the same problem for an assignment at the moment. The numbers are different, but that doesn't really matter.
I am really stuck.
Since the masses are the same, I am using plain m. Since T=m*a for each rope respectivly, the tension for the top rope should be...