Vectors

[kenhung123]

Good luck with physics!

[GerrySly]

[kenhung123]

how do you get that maths notation?

[GerrySly]

It's just , Wikipedia has a good page on it's syntax. Just use there skeletons and enclose them in tex tags.

Code: [Select]

[tex]\sqrt{2}\cos{(\frac{x}{3})&=-1[/tex]
^^ That is what I wrote for your original equation

[kenhung123]

Posted new question

[THem]

you don't really anti-differentiate something unless they tell you the situation
is defined by some equation or some vector.

a = -9.8j ( a = dv/dt)
v = -9.8tj + c

You can't really go any further because you don't know the velocity
at any point in time

Sorry I don't really have a better explanation and I have to go to Physics now ;d, good luck with it.

Haha sorry again, I made a mistake here. I just realised in the car.
The ball is going up, not down, dunno what I was thinking xD

So yeah, the ball goes up and you don't know the velocity that it takes. It could be v = 3.32432432 ms^-1 at one point, then be 4.32432432 at another. My point is you can't make or have an equation to anti-differentiate unless you're given one that defines the path or if it's constant.

Hope that makes sense.