inertia

2010-06-17 1:34 am
To the best of my knowledge, linear momentum of an object only depends on its mass but not velocity. How about angular momentum? I mean does velocity can affect the angular momentum of the object?

回答 (3)

2010-06-17 3:34 am
✔ 最佳答案
Angular momentum=moment of inertia x angular velocity.
Moment of inertia depends on the perpendicular distance from the rotating axis,and its own mass.

Angular velocity = v/r

Hence, for a higher velocity at a certain r.

Angular velocity is higher.Thus, angular momentum increase.
參考: Lucas Chau
2010-06-18 2:50 am
2010-06-17 4:43 am
No. The linear momentum of an object depends on its mass and velocity.
Similar for angular momentum. It depends on the moment of inertia (which is analogous to mass in linear motion) of the object and its angular velocity.


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