US F=ma Physics Olympiad 2022. First Round. Exam B. Solutions of problems 13-16 of 25. Mechanics

In this video I presented discussion for 13-16 of 25 problems from 2022 year Olympiad F=ma. Exam B.
Solutions:
0:44 Problem 13
3:41 Problem 14
5:14 Problem 15
6:40 Problem 16
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