- #1
sitzpillow
- 4
- 0
Dear physicist,
my task is to calculate the acceleration of a particle of mass m which moves without friction in the Earth's gravitational field on a helix:
The helix is parameterized as shown:
[tex]x(\phi)=a cos \phi[/tex]
[tex]y(\phi)=a sin \phi[/tex]
[tex]z(\phi)=c \phi[/tex]
formed with a radius a,gradient c as constants and the angle [tex]\phi[/tex] which mimics the projection of the radius vector on the x, y plane of the axis x with [tex]\phi \in 0<= \phi<\infty[/tex]
What is the relationship between the arc length s and the angle phi?
Also, I need to derivate the tangents, normals and binormal vector by using [tex]\overrightarrow{r}(s)[/tex]
and calculate the end nor the path velocity (with s (t = 0) = 0, s' (0) = 0).
I'm afraid not to have any approaches to solve the problem :/
I would appreciate every hint.
my task is to calculate the acceleration of a particle of mass m which moves without friction in the Earth's gravitational field on a helix:
The helix is parameterized as shown:
[tex]x(\phi)=a cos \phi[/tex]
[tex]y(\phi)=a sin \phi[/tex]
[tex]z(\phi)=c \phi[/tex]
formed with a radius a,gradient c as constants and the angle [tex]\phi[/tex] which mimics the projection of the radius vector on the x, y plane of the axis x with [tex]\phi \in 0<= \phi<\infty[/tex]
What is the relationship between the arc length s and the angle phi?
Also, I need to derivate the tangents, normals and binormal vector by using [tex]\overrightarrow{r}(s)[/tex]
and calculate the end nor the path velocity (with s (t = 0) = 0, s' (0) = 0).
I'm afraid not to have any approaches to solve the problem :/
I would appreciate every hint.