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https://bravikov.wordpress.com/2017/03/24/%d1%83%d0%b3%d0%be%d0%bb-%d0%be%d0%bf%d1%80%d0%be%d0%ba%d0%b8%d0%b4%d1%8b%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d1%82%d0%b5%d0%bb%d0%b0/
Угол опрокидывания тела