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If you don't know the basic contents of 'uniform motion' and 'free fall' that you learned in 3rd year of middle school, be sure to listen to it first before taking this lecture~ Don't ask questions without listening!!!!😤 👉🏻[3rd year of middle school] Uniform motion and free fall lecture • [3rd year of middle school_Motion and Energy] Lecture 1. What is 'motion'?│What is 'speed'?│Uniform motion... 00:20 What is inertia? 02:06 What is the state when the net force is 0? 04:05 Speed and velocity 05:25 Momentum 07:30 Impulse 08:20 How to calculate impulse ① Force x Time 11:20 Examples of how impulse is used 13:37 How to calculate impulse ② Change in momentum 17:00 Organizing formulas