Posted by **Tom** on Monday, November 19, 2012 at 10:43am.

The position of an object connected to a spring varies with time according to the expression x = (7.1 cm) sin (2.1π t). Find

(a) the period of this motion (b) the frequency of the motion (c) the amplitude of the motion (d) the first time after t=0 that the object reaches the position x = 2.6 cm (Make sure your calculator is in radians mode)

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