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“So, as you can see by this free body diagram, gravity is the only force on the ball. Therefore, the ball will move with constant velocity forward while accelerating downward at 9.8 m/s2. Any questions? Great!”
Lesson: Kobe Bryant jumping over a pool of snakes. Real or Fake?
I’m no genius when it comes to this teaching thing. It took me 12 years to get from Stage 0 to Stage 4 for this lesson. And I still have plenty of lessons stuck in Stage 0 and Stage 1!