Problems

1. {"partTitle"=>"The Apprentice's Practice: Foundational Skills", "instructions"=>"Vector components, graphical addition, and magnitude-direction calculations.", "problems"=>[{"problemNumber"=>1, "text"=>"A car travels 250 m East and then 150 m West. What is its distance traveled? What is its displacement?"}, {"problemNumber"=>2, "text"=>"Graphically add: A (10.0 m at 30.0°) and B (15.0 m at 135°)."}, {"problemNumber"=>3, "text"=>"A wind blows with a velocity of 25.0 m/s at 60.0° North of East. Find the Northward and Eastward components."}]}
2. {"partTitle"=>"The Journeyman's Task: Synthesis & Application", "problems"=>[{"problemNumber"=>4, "text"=>"Map your classroom: 8.50 m at 20.0°, then 12.0 m at 225°. What is your resultant displacement (magnitude and direction)?"}]}
3. {"partTitle"=>"The Master's Insight: Metacognitive Reflection", "problems"=>[{"problemNumber"=>5, "text"=>"Why are vector components powerful, especially when adding more than two vectors? Connect to the CCC 'Systems and System Models'."}]}