# Collisions

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Practice 8: Collisions

“Big intelligences discuss the idea; medium intelligences,
the happenings, and the small ones, the people”
Anonimous
* Objective:
To prove experimentally the lawof conservation of the quantity of movement in inelastic crashes.
* Theoretical Analysis
Isaac Newton defined the product of mass times velocity (mv) of an object as the amount of movement (p).The total amount of movement in a system is the vectorial addition of the quantities of movement of everyone of the bodies that conforms the system. Collisions between bodies can be elastic andinelastic. A crash is elastic when the kinetic energy is conserved and inelastic when not. In both cases the quantity of movement before the crash is equal to the quantity of the movement after it.Experimentally it is observed that when crashes occur between bodies, the total amount of movement does not vary, which constitutes the principle of conservation of the quantity of movement and it is aninvariable rule in nature.
* Material
* 1 lineal system
* 1 air bomb
* 1 spark generator
* 2 sliders, one with electrode spark
* 1 ruler
* 1 elastic rub
* 1 register paper* 1 metric ruler