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Bria Hitchens Partners: Jordyn Perkins, MaryGrace Beck, Emily Johnson Date: October 12, 2020 PHYS 2108 ; Section 19 Lab 6 Purpose: Looking at the difference between inelastic and elastic collisions. Conservation of linear momentum. How any collision can conserve momentum as long as no external forces are acting on the object. Internal forces send the objects the other way after collision. elastic= conserve momentum and kinetic energy. Very similar to billiard ball works. Procedure:Level the track using the digital inclinometer and place two photogates near the center of the track. These will record the speed as the carts pass. For Elastic collisions arrange the carts so that the projectile is before Photogate 1 and target is between the two photogates, record data table 1. Repeat the experiment twice once with steel weight added to the target cart and once with the steel weight added to the projectile cart. For inelastic collisions flip the target cart and repeat the experiment. For explosions flip the projectile cart. For wrap-up remove the target cart and only send the projectile cart down the track. Analysis Data Table 1: Recorded Speeds Elastic Collisions V1(projectile) Before V1(projectile) After V2(target) After M1(projectile) = M2(target) 0.352 m/s 0 m/s 0.343 m/s M1(projectile) < M2(target) 0.358 m/s -0.121 m/s 0.230 m/s M1(projectile) > M2(target) 0.400 m/s 0.120 m/s 0.491 m/s Inelastic Collision V1(projectile) Before V1(projectile) After V2(target) After M1(projectile) = M2(target)0.402 m/s 0.196 m/s 0.194 m/s Explosion V1(rearw. half) After V2(forwd. half) After M1(projectile) = M2(target)-0.154 m/s 0.141 m/s