PHYS Lab #9

PHYS Lab #9 - David Thibodeaux Physics 111A Lab 126:...

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Physics 111A Lab 126: Conservation of Momentum and Impulse Theorem 11/12/2010 Introduction: In this lab, we will measure glider velocities before and after collisions (both inelastic and elastic). In addition, we will measure the impulse of a collision between the glider and the force probe and compare it with the change in the momentum of the glider. Theory: We start with the definition of momentum p = mv to define momentum transferred between objects (i.e. in an inelastic collision). We can also define impulse using a similar equation J = Ft where J is the change in momentum, F is the force, and t is time (similar to the equation for power W = Ftd). We can define the kinetic energy of an elastic collision in a system using ∑KE = constant, assuming all kinetic energy is conserved in an elastic collision. Equipment: Air Track, Photogates, Gliders, Reflector, Bumpers, Glider Flag, Wax & needle, glider weights, Motion detector, force probe. Setup:
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PHYS Lab #9 - David Thibodeaux Physics 111A Lab 126:...

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