Angular Momentum Conservation Near a Planet: True or False?

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Homework Help Overview

The discussion revolves around the conservation of angular momentum for an object moving between a point near a planet and a point far from it. Participants are evaluating whether angular momentum about the center of the planet is conserved under these conditions.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants express uncertainty about the meaning of the problem and the conditions under which angular momentum is conserved. There is a discussion about the role of torque and its effect on angular momentum.

Discussion Status

Some participants have offered differing views on whether the statement regarding angular momentum conservation is true or false, indicating an ongoing exploration of the concepts involved. The conversation reflects a mix of interpretations and reasoning without reaching a consensus.

Contextual Notes

Participants are navigating the implications of torque and its relationship to angular momentum conservation, with some expressing a desire to understand both mathematical and verbal explanations. There is an indication of uncertainty regarding the definitions and assumptions at play.

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Homework Statement



Consider the motion of an object between a point close to the planet and a point very very far from the planet.
Indicate whether the following statements are true or false

Angular momentum about the center of the planet is conserved.

Homework Equations



?

The Attempt at a Solution



I am not sure what is meant.

I don't want to just guess. any help/hint.

I would like to solve mathematically but also verbally as well.
 
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The angular moment changes when a torque acts on a body. In this case, throughout the motion of the object the line of the force is passing though the center of the planet.
Now, what is your conclusion?
 
so its false?
 
No. It is true. Because there is no torque acting on the planet.
 

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