Solving 2D Dynamics Questions with Chris Hecker's Tutorials

[ridefast42]

Well I'm in the process of making a 2d physics engine using Chris Hecker's tutorials and when I read the second one (angular motion) I get confused. I have always thought that when a force is exerted on an object,"part" of the force changes the linear momentum of the object while the "other part" changes the angular momentum. When I read his article, my understanding is that the linear momentum changes according to F=ma and the angular momentum also changes according to the torque induced by that same force. Is that right or am I reading it wrong?

 

[LightHero]

Yes, you have read it correctly. Chris Hecker's tutorial explains that angular momentum is also affected by the force exerted on an object. The linear momentum of the object changes according to F=ma, while the angular momentum is affected by the torque induced by the same force.

 

[charng]

Thank you for sharing your experience with using Chris Hecker's tutorials to develop a 2D physics engine. It is not uncommon to encounter confusion when learning new concepts, especially in the field of physics.

Based on your understanding, you are correct in stating that a force exerted on an object can cause changes in both linear and angular momentum. In fact, this is a fundamental principle of Newton's laws of motion. As you mentioned, the linear momentum of an object can be changed by applying a force, while the angular momentum can be changed by applying a torque.

In terms of Chris Hecker's tutorial, it is important to note that he is focusing specifically on angular motion, which involves the rotation of an object around a fixed axis. In this case, the force applied to the object will cause a torque, which will then result in changes in the object's angular momentum. However, as you correctly pointed out, the linear momentum of the object can also be affected by this force.

I would encourage you to continue reading and practicing with the tutorial, as it can be a valuable resource for understanding 2D dynamics. It may also be helpful to review the fundamental principles of Newton's laws of motion and how they relate to both linear and angular motion. Keep up the good work in developing your physics engine!