Unformatted text preview: v (0) =8 knots and v ( t 10 ) =4 knots.) 2. After Sample Problem 2/3 in Text: A harmonic oscillator is deﬁned by its displacement coordinate s = s ( t ) and the associated acceleration a = ¨ s =ω 2 s , where ω is a real constant. a. What is the physical unit of ω ? b. Write the displacement s ( t ) and its velocity v ( t ) as function of time if s (0) = s and v (0) = v . c. What are the amplitude and periodicity of the motion? Niels Grønbech Jensen DEPARTMENT OF MECHANICAL AND AERONAUTICAL ENGINEERING  UNIVERSITY OF CALIFORNIA  DAVIS, CALIFORNIA 95616 TEL: 530.752.5335...
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 Fall '08
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 Velocity, Physical quantities, knots, Niels Grønbech Jensen

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