17. Periodic Motion
Energy in Pendulums
11:33 minutes
Problem 14.72
Textbook Question
Textbook Question(III) By direct substitution, show that Eq. 14–22, with Eqs. 14–23 and 14–24, is a solution of the equation of motion (Eq. 14–21) for the forced oscillator. [Hint: To find sin θ and cos θ from tan θ, draw a right triangle.]
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