- #1
Tobias101
- 1
- 0
Sorry if this is the wrong (sub)forum!
I need some help to understand how to express the following:
The velocity vector
When this is given:
Omega
radius
Both in magnitudes. I want to obtain an expression for the velocity vector when the angle theta (radians/s) is changed. That is, when i know the position of the particle:
(x,y) = r*(cos(theta),sin(theta)) Note: center is at (0,0)
I know the velocity vector is tangent to the point on the circle at any given time, and that it can be determined via the cross-product between the vectors omega and r, that is:
V = Omega X r
But how do i convert from magnitudes to vector form?? - it's very simple, I'm sure of it, but i cannot see anything in my book in calculus...
Any help appreciated - i hope i made myself clear
I need some help to understand how to express the following:
The velocity vector
When this is given:
Omega
radius
Both in magnitudes. I want to obtain an expression for the velocity vector when the angle theta (radians/s) is changed. That is, when i know the position of the particle:
(x,y) = r*(cos(theta),sin(theta)) Note: center is at (0,0)
I know the velocity vector is tangent to the point on the circle at any given time, and that it can be determined via the cross-product between the vectors omega and r, that is:
V = Omega X r
But how do i convert from magnitudes to vector form?? - it's very simple, I'm sure of it, but i cannot see anything in my book in calculus...
Any help appreciated - i hope i made myself clear