Impulsive Force Model use signs to show direction Momentum in Collisions Lab After Collision Left Collision Before Collision Hints Trial Condition type Right VL PL VR PR | total p VL PL VR PR total p cart cart m/s kgm/s m/s kgm/s kgm/s m/s kgm/s | m/s kgm/s kgm/s Careful with 1 Lom Bounce Lom signs; m = 0.5 kg O O -0.5- 0.5 25 - 0.5 O 2 m Bounce m O. S 10 1 0.5 0.5 3 m Stick 0 - J - 0.5 - 0.5 - 0.5 - 0.25 - 0.5 -0.25 -0.5 masses are 4 Stick 3m m . different - find 1.5 0 p accordingly 0 1. 5 10 75 1. 13 0. 75 0. 38 1:51 S Stick 2m 0.50 0 0.5 0. 33 0.17 0. 33 10. 33 0. 5 Carefull How m Bounce 2m many are O O - 1 - 1 moving after -1.33 -0.67 -0.33 - 0,33 7 Bounce 3m - 1 - J.S -1.5 -1.5 - 0.75 - 0.5 - 0.75 - 1.5 Try for about A Lom the same 0.S - D. S O -0 .5 I o. S Bounce speed for both Try for about 19 m Stick Lom the same 0, 5 -1 0.S O speed for both 0 0 O O 10 Make the 2m Stick 2m cart faster 0.5 - 1 - 0.5 0 - 0. 33 - 0.17 -0.53 - 0. 33 - 0.5PROCEDURE: Use the simulation at https://phet.colorado.edu/en/simulation/collision-lab You may have to enable Flash to run the program. The button in the lower right of the simulation box is reset. You may pick a velocity V (m/s) and keep it consistent for each run. Fill out the collision cart table attached to this document and perform the simulations for each of the given trials. If you read the columns in this table across the top you will record/calculate for each trial the: Initial velocity of the object on the left Initial momentum of the object on the left Initial velocity of the object on the right Initial momentum o the object on the right Initial total momentum (this is the vector sum of the initial momentum of the left and right carts) Final momentum of the object on the left Final momentum of the object on the right . Final total momentum (i.e. vector sum) Remember that momentum is a vector, meaning it has both a direction and a magnitude. Include the sign of the momentum as you are calculating and recording it for each cart before and after the collisions. ANALYSIS: 1. Go back to your table. Number each trial 1-10. Referencing the diagram shown in the Introduction, on the left side create a column and write down the number (1-4) that corresponds to the type of condition as depicted in the diagram. 2. For each trial, write out conservation of momentum in vector form. Verify whether it holds using the data in the table. 3. For each trial, write out conservation of energy. Verify whether it holds using the data in the table.Lab 7 CONSERVATION OF LINEAR MOMENTUM SIMULATION OBJECTIVE: to confirm the law of conservation of momentum for elastic and inelastic collisions. INTRODUCTION: The motions of objects after they collide can be determined from their previous motions if the forces acting during the collision are known. In most collisions, however, these forces are not known. The law of conservation of momentum must hold during any collision in which only internal forces act. As such, it can be used to predict the results of a collision even if the details of the interaction are unknown. When two objects collide and rebound such that both kinetic energy and linear momentum are conserved, the collision is said to be elastic. When two objects stick together after a collision, the collision is said to be completely inelastic. In this case the outcome of the collision can be determined from the initial values alone because the objects stick together and move with a common velocity after the collision. In this lab you will study conservation of momentum during elastic and inelastic collisions. collision 1 Before After collision 2 Before After collision 3 Before After collision 4 Before After