Recent content by TheAkuma

thanks a lot, I've just been flooded with assignments I can't think straight. This question doesn't really tell where the motorcyclist starts his run but it would be obvious that he starts a few meters behind the ramp. So I don't really know exactly where the displacement is at t=0, unless I...

Hi, I'm stuck in my maths assignment and need help with one of the questions. “A stunt motorcyclist launches himself from a ramp inclined at 30 degrees to the horizontal. He aims to clear a line of cars that extends to a distance of 40 metres from the end of the ramp. Use calculus methods to...

thanks guy, :smile:

also, does classical physics work on a molecular level or a macroscopic level? my classmate and I have been debating on this issue for quite a while.

Wow, thanks collinsmark:cool:. Looks like I'll be heading for an A. Just one more question, who contributed the most towards classical physics besides Newton and what did he/she do?

Hello people, its been a while since i used physics forums. My assignment is basically a comparison between classical physics and the Quantum physics and to explain why we don't use classical physics. While surfing on the web, i came across a text implying that the definitions of light, energy...

ok thanks

Ohh! ok. So I can use the sum in this case. It's confusing for me cause I didn't now if I'm allowed to use the sum of cosine or sine of the angle since I do two math subjects and I'm not allowed to use some methods in one maths subject. So I can also draw an Argand Diagram to help me out as...

Complex numbers in mod-arg form ("cis") Greetings, I'm learning about the mod-arg form. I find it fairly easy when I come across simple radians that relate to the two special triangles like pie/3, pie/4 and pie/6. But when the radians become a little bit more complicated like 3pie/4 I'm in the...

Well my teacher told me that this is sort of like the introduction to calculus.

Ohh! when there is a power of at the bottom of the fraction, does it go up? like from to the power of one it'll go up to the power of 2?

well the function is actually 1/4x-7. there is no brackets so i naturally assumed u=4x-7. I get it how the answer is -4/(4x-7)2 but why is it squared? i was thinking 1/u X -4 where u=4x-7. What I want to know now is why is the u squared?

Okay, I know how to differentiate regular functions. But when it comes to fractions, I'm hopeless. This may be an extremely simple one to some, here is the function; "1/4x-7" I have to differentiate that using the chain rule. I think that u=4x-7, but I am not sure. As i said, I am horrible...

Oops. Sorry about that, I just didn't know where to post it.

don't worry about it. I learned how to do it by adding the gradient to the derivative of the quadtratic formula then factorizing it. I got two "x" values, the original and the new one. Anyway, thanks for all your help. I'll try and contribute as much as I can to physics forums.