For motion in a straight line with constant acceleration, we can use the SUVAT equations of motion:
![]()
![]()
![]()
![]()
These have exact equivalents for motion in a circle with constant angular acceleration. In these equations,
and![]()
![]()
![]()
![]()
![]()
We can derive the circular equations of motion from the linear equations of motion
![]()
Substitute![]()
![]()
Divide by
to give![]()
![]()
Substitute![]()
![]()
![]()
Now divide by r^2 to give![]()
![]()
Substitute![]()
![]()
Now divide by r to give![]()
![]()
Substitute![]()
![]()
Now divide through by
to give![]()