Topics

• 0:00 - Choo choo!! 2021 Coding Challenge!
• 0:43 - Code! Drawing a bob and an arm.
• 1:08 - Explain! How are we going to think about this?
• 2:55 - Code! Add our main variables.
• 3:20 - Explain! How do we figure out where the bob is? Trigonometry is the answer!
• 4:39 - Code! Use the polar coordinates formulas we just worked out.
• 6:30 - Code! Let's use angular motion!
• 7:55 - Explain! What is the force of the pendulum? Trigonometry is the answer!
• 10:46 - Code! Add the pendulum force.
• 12:04 - Whoops! Correction on why we multiply by -1.
• 13:34 - Code! Add -1 to the formula.
• 13:57 - Whoops! I figured out some things that I never really understood.
• 14:24 - Code! Correct the 3 step process.
• 15:32 - Something doesn't feel quite right.
• 16:59 - Explain! Angular acceleration relates to the arm length!
• 18:58 - Code! Let's divide by length.
• 19:54 - Code! You could add some damping.
• 20:21 - Ideas! What could you do next?