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Learn how to handle collisions in 2 dimensions...and get better at playing billiards.

The physics archive contains legacy physics content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out Middle School Physics, High School Physics, …

Investigate how different collision types affect a system's momentum and kinetic energy. Use the concept of center of mass to simplify the analysis of a system's motion.

But what's interesting is that even though their speeds have changed after collision, their momentum stays conserved, what we mean by that is, if you calculate its total initial momentum of these two …

Object B has a mass of 4 kg and is moving with a velocity of 3 m/s along the x -axis. After the collision, object A moves with a velocity of 4 m/s at an angle of 45 ∘ to the x -axis. What is the final velocity of …

In this video, David solves an example elastic collision problem to find the final velocities using the easier/shortcut approach.

Review the key concepts and skills for inelastic collisions. Understand how to determine if a collision is elastic or inelastic.

Slaying the day in physics involves approaching the subject with enthusiasm, curiosity, and a proactive mindset. To excel in physics, you can start by understanding the fundamental concepts thoroughly, …

The momentum will be conserved for both elastic and inelastic collisions. It's just kinetic energy that's not conserved for an inelastic collision. How do you deal with collisions in two dimensions? Well the …