Conservation of momentum and Moment of Inertia

AI Thread Summary
To incorporate moment of inertia into the conservation of momentum equation, it's essential to understand the relationship between linear and angular momentum. The discussion emphasizes the need to clarify the specific equation being referenced and to recognize that both the ball and bat possess angular momentum. A suggested resource is provided to illustrate how angular momentum applies when a ball strikes a rod. The user expresses a desire for guidance rather than direct solutions, indicating a willingness to learn independently. This approach highlights the importance of foundational knowledge in physics concepts for effective problem-solving.
Pbaseball
Messages
2
Reaction score
0
Hello everyone,
I'm needing help understanding how to take the conservation of momentum equation and substitute moment of inertia inplace of mass in the equation. I understand this is a linear equation and I'm trying to incorporate angular momentum. I just want to determine the speed of the ball and bat swing using the moi of the baseball bat. Can someone help me get started? Thanks --Roy
 
Physics news on Phys.org
Hello Roy, :welcome:

You could start off by stating a clear case to begin with. Not clear at all what you are looking at: 'the equation' is mentioned but reader has no idea. Cold you be a bit more elaborate ?
 
Last edited by a moderator:
CWatters said:
Perhaps start by understanding that the ball has angular momentum..

"Ball hits rod angular momentum example"
https://www.khanacademy.org/science...rial/v/ball-hits-rod-angular-momentum-example

Sweet. Thanks for the direction.
If you read in my introduction thread I'm ready to learn and teach myself but I just need some direction. I'm not looking for you guys/gals to do this for me. Thanks again. Any help is appreciated.
 

Thread 'Is calling fictitious forces "not real" just about terminology?'

Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
View full post »

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
View full post »

Similar threads

B Why does torque increase with increasing moment of inertia?
Replies
13
Views
2K
B Impulse and distance from the axis of rotation
Replies
9
Views
2K
I Effects of External Torques on the Angular Momentum of Asymmetric Bodies
Replies
3
Views
2K
B Is the Physics of the Frog Jump Important in Taekwondo?
Replies
11
Views
2K
B The physics of flywheel launchers (like tennis ball shooters)
2
Replies
60
Views
4K
I Angular Momentum problem v2 (mass moving inward or outward)
Replies
5
Views
2K
Conservation of linear and angular momentum
Replies
9
Views
2K
I Conservation of angular momentum during collisions
Replies
3
Views
3K
Conservation of linear momentum when wheels are included
Replies
11
Views
3K
Angular Momentum Problem: Mouse walking on a rotating turntable
Replies
5
Views
1K

Hot Threads

Recent Insights

Back
Top