The angular-velocity tag has no wiki summary.
2
votes
3answers
21k views
Linear acceleration vs angular acceleration equation
I'm learning about angular velocity, momentum, etc. and how all the equations are parallel to linear equations such as velocity or momentum. However, I'm having trouble comparing angular acceleration ...
3
votes
2answers
942 views
Does Earth's Rotation Affect Its Shape?
The question I am working on is, "Consider the following.
(a) Find the angular speed of Earth's rotation about its axis. rad/s
(b) How does this rotation affect the shape of Earth?"
I am fully ...
1
vote
1answer
276 views
Cases in which angular velocity and angular momentum point into same direction
I know that angular momentum $\vec{L}$ and angular velocity $\vec{\omega}$ of a rigid body doesn't point into the same direction in general. However if your body spins around a principal axis, ...
0
votes
1answer
1k views
Tennis serving machine— How does a spinning ball bounce?
I have an idea of making a tennis serving machine. I will briefly describe what it is:
The machine is configured to serve the ball at a fixed speed to the center of the left (or right) service court
...