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A particle of mass m is initially at x = 20 cm with a period of...

A particle of mass m is initially at x = 20 cm with a period of 1.4 s and moving with velocity v0 = +51 cm/s. Write expressions for the following. (Round numerical values in your answers to two decimal places.)
(a) the position x as a function of t
(b) the velocity vx as a function of t
(c) the acceleration ax as a function of t

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