Recent content by Nogueira

the upward motion the package will have will be rather insignificant because the 2m/s speed isn't fast enough to make a difference in the problem, keep in mind this is a basic physics homework, the person that made the exercise wasn't probably thinking of the upward motion, since this is...

you could also do a much simpler way. Since half the way was made at 31.67m/s, if the other half was made at 25m/s, the simple average would have been 28.335m/s, which is 3.335 m/s higher than the average required., now, if you double the value (because the average is made by dividing by 2 the...

Ok,thanks dude

So, to do the conservative force work we have to equal the mass to zero, but still, for the non conservative work, how do we find the "v" in the final cinectic energy?

would it be possible to find out v0 using just the following equation? y=v0t-0.5a(t*t)

Ok, thank you very much.

I'm not really sure, but I think you are not using the exact formula, the equation: mgsin(x), is not giving you the velocity, instead, is giving you the potencial energy of the body, that is why with t=0 gives you a value, because, while stopped, the body has potential energy instead of cinectic...

Thank you very much for answering, I later recalled the ansewr to the question of why they don't fall, just one more question though, according to GR how does the spacetime deformation caused by the Earth makes the apple fall from the tree?

I was reading Paralel worlds by Michio Kaku, due to its content I'm hoping to learn a little more about physics and cosmology, before i go to university, at one certain point, right in the beggining, while explaining Einstein's view on gravity, the author says that for Einstein, the Earth moves...

Hi Vorde, thanks, for the enlightment. "2) I'm not quite sure what you mean by this, if you mind rephrasing I might be able to help." I'll try to refrase, if you see, for example, a picture of the solar sistem, you will notice that all the planets and the sun, are vertically aligned, i mean...

Hi, I have lots of questions, they occurred to me last year during the physic/chemistry class and I asked the teacher and she couldn't answer. First: Is the universe tridemensional?? Second: If yes, which is what I believe so, Why do we see stars and planets and galaxies always in a straight...