One-Dimensional Collisions

# Therefore we first start by writing the kinetic

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ing with vectors and that energy is scalar. Therefore we first start by writing the kinetic energy as 1 2 (14) where v represents the magnitude of the velocity. However, in this experiment, we are only dealing with motion in one direction, thus we can write the kinetic energy in the more familiar form 1 2 (15) The next thing that we must realize is that we do not have a change in elevation. Therefore we have NO potential energy; however, we do have another form of energy. It is called internal energy and it is denoted as Q. This quantity represents the net loss or the net gained in kinetic energy. Because energy must be conserved, the value can be interpreted as the internal energy of the system because energy lost in the collision will be transferred to the internal energy as sound, heat, vibration, etc. Thus we can write the general form of the conservation of energy as (16) 5 or as in our case of one dimensional motion, we can write the conservation of energy as 1 2 1 2 1 2 1 2 (17) Therefore we can write the change in internal energy as 1 2 ∆ 1 2 1 2 1 2 (18) Equation (18) gives us the loss in internal energy; however, we want the increa...
View Full Document

## This document was uploaded on 03/20/2014 for the course PHYS 215 at Lafayette.

Ask a homework question - tutors are online