- #1
The_Engineer
- 18
- 0
There seems to be different types of angular velocity to me...
1) A rigid body could be moving in a nonlinear path (ex. a pendulum)
2) A rigid body could be rotating about an axis on itself (ex. the Earth rotating about an axis)
3) Both #1 and #2 combined (ex. the Earth moving around the sun as an object AND rotating about an axis)
Am I thinking about this correctly?The well known angular velocity equation for a rigid body is
va = vb + w × rab
where w is the angular velocity of the rotation of the body about an axis that is on the body (like #2 above), correct?
Is there angular velocity associated with a body moving in a nonlinear path, such as a sphere on a pendulum that is NOT rotating about an axis on itself (like the Earth's rotation axis in on the earth)?
I just want to qualitatively understand angular velocity/momentum better.
1) A rigid body could be moving in a nonlinear path (ex. a pendulum)
2) A rigid body could be rotating about an axis on itself (ex. the Earth rotating about an axis)
3) Both #1 and #2 combined (ex. the Earth moving around the sun as an object AND rotating about an axis)
Am I thinking about this correctly?The well known angular velocity equation for a rigid body is
va = vb + w × rab
where w is the angular velocity of the rotation of the body about an axis that is on the body (like #2 above), correct?
Is there angular velocity associated with a body moving in a nonlinear path, such as a sphere on a pendulum that is NOT rotating about an axis on itself (like the Earth's rotation axis in on the earth)?
I just want to qualitatively understand angular velocity/momentum better.