1d- analysis

1d- analysis - 1-D Conservation of MomentumIt’s possible...

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Unformatted text preview: 1-D Conservation of MomentumIt’s possible to measure the momentum of any number of objects before and after they collide.•For now we will only look at how to figure out problems with two objects in a head-on collision, called either 1 dimensionalor linearcollisions.•It was noticed in Newton’s time that the total momentum of all objects before a collision equals the total momentum of all objects after.•To this day the Conservation of Momentumremains a fundamental law of physics.Note: We will be using the symbol “prime” (a little tick like this ' ) to represent “after the collision.”Before the CollisionAfter the Collisionmomentum of object “a” = pamomentum of object “a” = pa'momentum of object “b” = pbmomentum of object “b” = pb'So, a formula for two objects that collide would look like…ptotal= ptotal'pa+ pb= pa' + pb'mava+ mbvb= mava' + mbvb'You do have to be careful with how you solve these collision problems•After the collision the two objects might bounce apart (...
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This note was uploaded on 02/29/2012 for the course PHYS 227 taught by Professor Rabe during the Fall '08 term at Rutgers.

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