- #1
Davidllerenav
- 424
- 14
Homework Statement
The position vector of a particle changes:
- Only by its module.
- Only by its direction.
Homework Equations
None.
The Attempt at a Solution
I think that the trayectory would be a line, at least for the first one. For the second one I really can't Imagine how the direction can change without changing the module. How can I make this analitically?