Momentum and Collisions

The average force acting during a time interval.

The difference between final and initial momentum.

An interaction in which objects exert forces on each other over a short time.

The principle that total momentum remains constant in an isolated system.

The duration over which objects interact during a collision.

A vehicle structure designed to deform during a collision and increase stopping time.

A change in an object's shape.

A collision in which both momentum and kinetic energy are conserved.

Material expelled from a propulsion system.

An interaction in which parts of a system move apart as stored energy is released.