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**Unformatted text preview: **v T s. SOLVING PROBLEM 2 Something (it doesnt matter that it is a tooth brush bristle!) is oscillating at 500 Hz with peak-to-peak amplitude 5 mm. What is the maximum speed? Trick 1 is the amplitude is half the peak-to-peak amplitude, or mm. Trick 2, I gave you A in mm. 5 . 2 A The velocity is ) cos( ) sin( / t A t A dt d dt dx v . The maximum speed is thus A v max . But f 2 . Thus . s m s m Af v / 85 . 7 500 0025 . 2 2 1 max...

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