Applications
45. A damped oscillator The displacement of a particular object as it bounces vertically up and down on a spring is given by y(t) = 2.5e−t cos 2t, where the initial displacement is y(0) = 2.5 and y = 0 corresponds to the rest position (see figure).
- a. Find the time at which the object first passes the rest position, y = 0.
- b. Find the time and the displacement when the object reaches its lowest point.
- c. Find the time at which the object passes the rest position for the second time.
- d. Find the time and the displacement when the object reaches its high point for the second time.
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