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anybody can help me ?????????? tahnks ATTACHMENT PREVIEW Download attachment Screen Shot 2019-09-25 at 10.11.49 PM.png 2.6.3. Suppose a string is stretched with tension + horizontally between two anchors at x = 0 and x = 1. At each of the n - 1 equally spaced positions xx = k/n, k = 1,...,n-1, we attach a little mass m; and allow the string to come to equi- librium. This causes vertical displacement of the string. Let q, be the amount of displacement at x. If the displacements are not too large, then an approxi- mate force balance equation is nT(9k - 9k-1)+ nT(9k - 9k+1)= meg, k =1,...,n-1, where g =-9.8 m/s is the acceleration due to gravity, and we naturally define 90 = 0 and 97 = 0 due to the anchors. (a) Show that the force balance equations can be written as a linear system Aq = f, where q is a vector of displacements and A is a tridiagonal matrix (that is, A;; = 0 if |i - j| &gt; 1) of size (n - 1) x (n-1). (b) Let T = 10 N, and let my = (1/10n) kg for every k. Find the displace- ments in MATLAB when n = 4 and n = 40, and superimpose plots of q over 0 &lt; x _ 1 for the two cases. (Be sure to include the zero values at x = 0 and x = 1 in your plots of the string.) (c) Repeat (b) for the case my = (k/5n?) kg.

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