Recent content by Anza Power

^ That helped alot, thanks...

Given the potential energy between two objects that is function of the distance between the two objects: u=a/r³ - b/r² (a,b>0) I need to find where the object is in a resting state, and the energy require to completely separate the two objects... The attempt at a solution I went ahead...

^ Ahaaaaa, now everything finally makes sense, thanks a bunch dude...

It's a homework question, thanks for the shortening tip, but why would I need s instead of a? aren't they the same? I've already read that library post but it didn't help much, do you know maybe where I might find some questions with detailed answers of the same type?

We have a force which changes according to what point you're at, e.g: f=(4x²,3z-2y,2z), we need to calculate the work done by this force from point (0,0,0) to (2,1,3) on different curves I don't want an answer I just want an explanation for how this is done, this is what I understand so far...

It's a flash swf file, do you have flash player on your computer? anyways it's just a normal track with a loop and what we were asked to find was the minimum intial speed at which the object could pass the loop... Thank you for your help...

Ah so v²/R is the force pushing the ball outwards so that needs to be equal to (and greater than?) g? V1²/R>g V1²*m/2 + mg2R = V0²*m/2 V1² + 4gR = V0² V1² = V0² - 4gR V1²/R > g (V0² - 4gR)/R > g V0²/R - 4g>g V0²/R > 5g V0 > √5gR Is this correct?

Just want to know, you have a mass moving frictionlessly as follows: http://upswf.com/show.php?filename=1290256802718_aaa Is it true that the object will pass the loop without falling (by gravity) if at the maximum height point the speed is larger than zero? (I know in my animation it kinda...

I am sorry to bump this but can someone just tell me if the tension calculation is right? I just need to know how to find the tension and I can solve everything (there are other parts in this question)

We have the following system in ideal condition (pulleys and rope are mass-less and frictionless) We need to find the conditions in which M3 will go downwards... Ok so here's what I did: M3g > T And this is what I'm not sure of: T=(M1g + 0.5M2g + M3g)/3 So the answer which I came to was...