Recent content by erensatik

totally got it, saying that is enough. Thanks for the help

This problem just came to my mind when thinking on another problem. Does the tension is just 2T as it is if the angle "a" is 90 degrees? It seems not to me. In a "normal"( I don't really know what is the right word for that) situation, the tension is would be 2T at the line in the middle of two...

Oh god, I was thinking y as a horizontal movement of W. I kept drawing triangle and used pythagoras for an hour. It's clear now. I thank everyone for helping me out. By the way, this forum is awesome! Liked it.

Thank you all for replying. I think now I can imagine what's going on. A and B would try to move away if you remove AB strut so there is tension and B goes down. I get these. But part b is still a problem. Because answer that the book gives is W(y/x) which is not just tension or compression. I...

EBF gets smaller I guess. But I can't solve it. Can you solve it completely?

I thought the system is like 4 rod all connected to AB. I don't know this is valid and even if I assume it's true I can't calculate force on AB. Can you make it more clear?

Why the wheel moves? I intuitively think that it should move to right but I don't really understand why. When AB gets longer by x each end gets longer by x/2 so W goes to right and down. This will create torque and body will move. This explanation seems valid but I can't calculate anything and...

Thanks for the reply. Do you mean to say that I should have posted a new threat? I am new so I don't know much. The reason I asked this question is the problem OP posted is in chapter 2 of "Exercises for the Feynman Lectures On Physics".Which is a chapter dedicated to energy. I don't know the...

Equation in the b part of the question is different in my book. It is a(Δa) + b(Δb) = c(Δc) and it is easy to get with Pythagorean theorem. My question is how it is related with conservation of energy?