Question

In an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression,

* x* = 8.00 cos (3t + pi/4)

where *x* is in centimeters and *t* is in
seconds.

(a) At *t* = 0, find the position of the piston.

cm

(b) At *t* = 0, find velocity of the piston.

cm/s

(c) At *t* = 0, find acceleration of the piston.

cm/s^{2}

(d) Find the period and amplitude of the motion.

period | s |

amplitude | cm |

Answer #1

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