An inelastic collision is a collision in which there is a loss of kinetic energy. While momentum of the system is conserved in an inelastic collision, kinetic energy is not.

In an inelastic collision, the total final kinetic energy of the system is less than the total initial kinetic energy of the system because some of the energy is dissipated as other forms of energy. In a …

Block A is initially moving to the right on a horizontal frictionless surface with speed v 0. An identical block, B, is initially moving to the left with speed v 0 toward block A, as modeled below. The blocks …

Elastic collisions and conservation of momentum Learn What is conservation of momentum?

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

In this video, David derives the expression that we can use as a shortcut to solve for finding the velocities in an elastic collision problem.

Explore inelastic collisions through interactive exercises and deepen your understanding of work, energy, and power concepts on Khan Academy.

Review the key concepts, equations, and skills for elastic collisions, including how to predict objects' final velocities.

Collisions can be elastic or inelastic. Learn about what's conserved and not conserved during elastic and inelastic collisions.

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