Part 1. Core 1. We know that a perfectly elastic collision can be determined if Kinetic Energy of the system is conserved after the impact. We also know that energy is always conserved for any type of collision (elastic or inelastic). Describe what type of collision this is and discuss how you know in terms of energy. 2. Momentum is a VECTOR/SCALAR quantity that is ALWAYS/SOMETIME/NEVER conserved (circle your choices) for a system of masses. 3. Define the "system" that you will be analyzing. 4. Draw the vector diagram that will help you recreate the initial conditions of the collision. Use the labels indicated to represent each vector. Vector diagram (tip-to-tail) showing conservation of momentum where: Pi-bike = initial momentum of bike "just" before impact Pi-car = initial momentum of car "just" before impact Pf-bike/car = final momentum of bike and car "just" after impact