Recent content by krej

Wait, I'm confused now if I have two objects colliding. You said that COR is a property of the collision, not the objects. So wouldn't that mean there is only one COR throughout the whole collision? Now what happens if you're dealing with objects in a 2D plane(like just laying on a table) and...

Ah ok, that explains a bit more to me, and after playing around with it I got it to work! :D If I run into anymore problems or have anymore questions about this, I'll come back and ask. :) Thanks for your help, its greatly appreciated!

Ah! That is more or less what I was looking for. I'm not really looking for what happens at the macroscopic level, since my physics simulator doesn't go that far into it. I have not heard of the coefficient of restitution before your post(sadly my physics book doesn't mention it), so I googled...

My college Physics class keeps on increasing my interest for physics, and I'm getting bored of the in class work so I've decided that I want to try to make a physics engine so that I can play around with physics and help myself learn more of it without being confined to just what my professor...

Oh, wow I didn't notice that at all. I'm too used to it always being in seconds I didn't even think about looking at that. :p Thanks a lot for your help!

Homework Statement In the figure , what value of F_max gives an impulse of 6.8 Ns? http://img76.imageshack.us/img76/1782/09ex05.jpg Homework Equations Integral of F with respect to time equals impulse The Attempt at a Solution I tried doing two things, and they were both wrong...

Ah ok, thanks. Now it makes more sense. And it's all right, I still ending up getting about an 80% on the homework, which is good enough for me right now since I was forced to do it all at the very last minute. Thanks again. :)

Shoot, the time is up for the assignment. I had to have it done by 11pm, but I still couldn't think of how exactly to do it. :( Oh well, thank you for all of your help! Even though I didn't get the answer, it still helped me learn a bit more.

Oh wow, is it: omega = v^2/r omega*r = v^2 sqrt(omega*r) = v ? But what would the units on that be? It would be rpm*meters, but the answer needs to be in m/s. How would you convert that?

I still can't get it. :( I don't really know what I'm doing wrong either. Maybe my algebra is just off? Right now I'm trying to find the speed, what I have is two main equations. \SigmaFr= ma = T*cos(\vartheta) \SigmaFz= 0 = T*sin(\vartheta) - mg From the second equation, I found the tension...

I drew this diagram, the only thing given was the question. Where else would the 58.0 cm go? The only other place I could see it going is at the radius, but it says the strings length is 58.0cm, which isn't necessarily the radius(it could be making really small circles with like a 5cm radius...

Homework Statement A 240 g block on a 58.0 cm-long string swings in a circle on a horizontal, frictionless table at 85.0 rpm. A. What is the speed of the block? B. What is the tension in the string? Homework Equations Look at the link in #3. The Attempt at a Solution I'm not...