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Part 2: 1D Conservation of Momentum Definitions: System: Isolated system: Conservation: Law of Conservation of Momentum The total momentum is conserved in an isolated system Important! Momentum is a vector -> Three types of collisions: 1. Hit and bounce 2. Hit and stick 3. ExplosionExample: A 7.0 kg ball rolls at 10 m/s [E] and collides with a 3.0 kg ball rolling at 2.0 m/s [W]. After the collision, the 7.0 kg ball continues to roll east at 5.0 m/s. What is the velocity of the 3.0 kg ball? Example: A stationary 12 kg bottle rocket explodes into two pieces. A 4.0 kg piece travels 2.0 m/s [W] after the explosion. What is the velocity of the second, 8.0 kg piece of bottle?Physics 30 Lesson 2.1: Conservation of Momentum Part 1: Review of Vector Addition Reminders: 0 Your graphing calculator defaults to radians > make sure you are in degrees mode a Don't round calculators until the very end, keep as many decimals places as possible to avoid rounding error I The sum of two vectors is called the resultant - For vector addition diagrams, we use the tail to tip method Three types of vector addition: Collinear vector addition Collinear vectors are vectors that can be placed along the same line. They either point the same way or the exact opposite direction