Forums Technical Discussion With force,how to make particle move uniform circularly?

With force,how to make particle move uniform circularly?

   3148   2   0
User Avatar
flyingc
Member
160 posts
Joined:
Offline
 
I give a particle a start velocity and a centripetal force then play animation.

but the trajectory is not a circle but a spiral curve. why?

Note that I don't want to use circle formula.
Edited by - 2009年6月25日 22:16:15

Attachments:
无标题.JPG (19.8 KB)
circularmove.hipnc (42.9 KB)

 Report
User Avatar
tamte
Member
8597 posts
Joined: 7月 2007
Offline
 
The initial force you applied is 4 in global X direction
then you are just adding incentric force, i cannot see the reason why it should be circular this way

Try using Orbit POP, it is made for this kind of motion

or you can make your own force with VOP POP
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
flyingc
Member
160 posts
Joined:
Offline
 
tamte
The initial force you applied is 4 in global X direction
then you are just adding incentric force, i cannot see the reason why it should be circular this way

Try using Orbit POP, it is made for this kind of motion

or you can make your own force with VOP POP

thank you .

i want to test how the force affect a particle's motion.
so I refer to the formula :f=mv^2/radius .

and set the start velocity and the centripetal force
 Report
  • Quick Links