Chapter 24 Physical Pendulum

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24 -7 Krot= 1 2 I p ω z 2.(24311) The mechanical energy is then E=U+Krot=mg d 2 (1−cosθ)+ 1 2 I p ω z 2, (24.312) with (1/3)2 I P=md. There are no non-conservative forces acting (by assumption), so the mechanical energy is constant, and therefore the time derivative of energy is zero, 0= dE dt =mg d 2 sinθ dθ dt +I p ω z dω z dt. (24.3 ...

  Chapter, Mechanical, Energy, Mechanical energy