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Collisions in One_Dimension

# Collisions in One_Dimension - Collisions in One Dimension...

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Collisions in One Dimension Purpose: The main purpose of this lab was to investigate the conservation and momentum in one dimensional, two-body collisions. THEORY The momentum of a particle is defined as p=mv. According to Netwon’s 2 nd law, the force F is equal to the time rate of change of p (momentum) where F is the net force acting on the particle. The following equation is summed over all the particles: QuickTimeª and a decompressor are needed to see this picture. Where n is the number of particles, F is the net force on the system and P is the total momentum of the system. We can neglect the internal forces of the system as Newton’s 3 rd law guarantees that they will cancel out. This enables us to realize that if any component of F = 0 then our total momentum P will be constant. It is important to note that though momentum can be conserved, this does not always necessarily yield that energy will be conserved as well. In this lab, we studied two body collisions: elastic and inelastic. In elastic collisions, the kinetic energy of the system is conserved whereas in inelastic collisions, KE is lost and therefore energy is not conserved. 2.3 TWO PARTICLES ONE DIMENSIONAL COLLISIONS In the elastic collision experiments we performed, we used two gliders.

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