SPH 4UI Unit 2: Energy & Momentum: Written Summative Instructions: Use proper form in your solutions (GRASP just like demonstrated in the lessons). Be sure to include all your work, always thinking about good communication. You are to demonstrate your understanding of the methods and concepts from the class and therefore you are not to use any other resources (internet, other people, etc.) apart from our notes and textbook. Just being able to get an answer is not the only thing being assessed... I am evaluating how you have interacted with the lessons I have taught. This means that a Level 4++ assessment will include correct physics and math and will reflect what has been taught in the class and how I have instructed you to set up your solutions, etc. Question 1: You have a spring loaded projectile launcher and a projectile with a mass of 425 g. The launcher is set at an angle (actual angle unknown). The launcher starts with a stationary projectile whenever it launches. At some point after launch, the projectile is 24.0 m above the level of the launcher and moving at 4.65 m/s. If the spring constant of the launcher is 322 N/m, show all your work (including a good, labelled diagram) to find the distance the launcher spring was compressed before launch. Question 2: A 275 g hockey puck is sliding on ice at 10.4 m/s [E 25.0'S] and collides with a 725 g frozen water bottle that was sliding on the ice at 5.395 m/s [E 18.0"N]. After the collision, the water bottle is moving at 6.34 m/s [E 15.4'S]. Show all the steps (and include good, labelled vector diagrams) to find the velocity of the puck after the collision. Also, show your work to determine if the collision was totally elastic