Aguitar string is plucked at a distance of 0.6 centimeters above its resting position and then released, causing vibration. the damping constant of the guitar string is 1.8, and the note produced has a frequency of 105 cycles per second. a.) write a trigonometric function that models the motion of the string. b.) using a graphing calculator, determine the amount of time t that it takes the string to be damped so that -0.24 y 0.24. be sure to show a screenshot of your graph.

The equation that represents the motion of the string is given by:

    .....[1] where t represents the time in second.

Given that: A = 0.6 cm (distance above its resting position) , k = 1.8(damping constant) and frequency(f) = 105 cycles per second.

Substitute the given values in [1] we get;

or

(a)

The trigonometric function that models the motion of the string is given by:

(b)

Determine the amount of time t that it takes the string to be damped so that

Using graphing calculator for the equation

let x = t (time in sec)  

Graph as shown below in the attachment:

we get:

the amount of time t that it takes the string to be damped so that is, 0.5 sec