Recent content by jaguar ride

I'm normally an extremely active person, so it has crossed my mind that lack of exercise could be playing a role. But I don't see how it could have SUCH a huge negative impact. I've also been trying very hard to get adequate sleep and eat healthy this semester. I will consider seeing a doctor...

I have three semesters left before I get my BSME. I went back to school a few years after high school, and a few years later (I had to start at the very bottom, seeing as I didn't even pass algebra in high school) I got accepted into an engineering school. I've done well enough up until now to...

After talking to my professor, I discovered that they didn't even solve this problem and didn't realize they had made the angle so small. We were given credit based solely on our setup as a result, but they didn't take the time to explain what was actually going on in this instance. Thanks for...

Alright, so the left side of my equation must be greater than or equal to zero. If I set it equal to or greater than zero I can find out what value of frictional force will make that happen. Since the maximum frictional force wants it to be negative, it's going to take the first opportunity it...

Well, since there is no speed low enough to require the maximum amount of static friction, I'm inclined to believe that it could not be rotating at all and there would be no slipping. But I've been confused for this entire thread, so I'm not feeling too confident about that answer.

Yes, it's 10 degrees from the horizontal. I wasn't running into this issue with other problems since the angles had all been larger. I still don't know what my conclusion is, I'm even more confused now. How do I figure out exactly what the frictional force is? Or how do I prove it's zero? I...

I'm sorry, I'm still not understanding where I've gone wrong. |Fs|≤μs|FN| So the force of static friction can be less than the normal*coefficient. How do I know what that is? Could it be zero? I don't get it.

I'm fairly certain it's the ratio of frictional forces. I'm not sure where that factors in.

What do you mean by exact definition? Static friction is what's keeping an object from moving. Once it moves it becomes subjected to kinetic friction.

"n" would technically be the x-axis, but according to my book, it's to be labeled "n" in this chapter. Also according to my book, the z-axis should be "b", but my professor likes to use "z". Anyways, here's the free body diagram. Is friction not working against centripetal force? It's...

Homework Statement A 200 lb man lies against the cushion on a Rotor ride, which is inclined at θ=10°. The coefficient of static friction is μs=0.3. Radius is 8 ft. Find minimum speed so that the man does not slip down. Homework Equations ΣFn = man ΣFz = 0 an = v2/r The Attempt at a Solution...

Alright, I ended up getting it correct, but this entire problem was really confusing for some reason, and I'm still not sure I actually understand it completely. Thank you both for helping me (or at least trying to). I'm going to talk to my professor in the morning when my brain is actually...

I don't understand what you mean by more general. For the moment cause by F, do I not need to use both the components? If I use the cross product rather than what I'm showing here, I'm still ending up with the same answer for that... I'm sorry, It's been a very long day for me and it's hard to...

Ok, am I on the right track with these equations? I only have two more attempts to answer this so I can't risk it EDIT: my vertical force equation includes -16660, I forgot to add it until after I'd uploaded the photo.

I'm lost now. If I sum the moments about A, then I won't have a reaction at A in my moment equation. Yet I'll still need to know that for the rest of my force equations, won't I? To top it off, a classmate just told me I need to assume the normal forces are equal, and solve it without even...