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The graph shows the displacement from equilibrium of
a mass-spring system as a function of time after the
vertically hanging system was set in motion at time
. Assume that the units of time are
seconds, and the units of displacement are centimeters.
The first -intercept is and the
first minimum has coordinates .
(a) What is the period of the periodic
motion?
seconds
(b) What is the frequency in Hertz?
What is the angular frequency
in radians / second?
Hertz
radians / second
(d) Determine the amplitude and the
phase angle (in radians), and express
the displacement in the form
, with
in meters.
meters
(e) With what initial displacement and
initial velocity was the system set
into motion?
meters
meters / second
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