_PhaseQs_doc_ - An oscillator's position as a function of...

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Unformatted text preview: An oscillator's position as a function of time t is given by: x(t) = A cos( t + ) . (a) At time t = 0 the oscillator starts from position x = xo (> 0) with velocity v = 0. What is the amplitude A ? (1) 0 (1) 0 (2) xo (2) /2 (3) (3) xo (4) xo/ (4) - /2 (5) other (5) other What is the phase ? (b) At time t = 0 the oscillator starts from position x = 0 with velocity v = vo (> 0). What is the amplitude A ? (1) 0 (1) 0 (2) vo (2) /2 (3) (3) vo (4) vo/ (4) - /2 (5) other (5) other What is the phase ? ...
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