Learn how to use the Conservation of Mechanical Energy equation by solving a trebuchet problem. Want Lecture Notes?
This is an AP Physics 1 topic.
0:08 The problem
1:08 Why mechanical energy is conserved
1:37 Setting the zero line and initial and final points
2:32 The three types of mechanical energy
3:55 Canceling mechanical energies from the equation
4:54 Solving the equation
6:18 It’s final speed not final velocity
6:51 Why we can’t use the projectile motion equations
7:43 Do we really have to write all that down? Yes.
Thank you to my students Will, Jacob, Natalie and Mery; my students who built and let me use their trebuchet!
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