Need code please The velocity of a falling parachutist is given by the following

Question

Need code please

The velocity of a falling parachutist is given by the following formula: Where g-9.81 m/s2 the drag coefficient c=13kg/s. Compute the mass (m) of the parachutist so that v = 42 m/s when t = 11 s Hints this is an f(x) = 0 type problem, with corresponding variables v(m) = 0 newton, bisect and fzero are functions from the NMM toolbox, directly accessible from the MATLAB prompt on MCECS computers. Rearrange the terms and write a simple m-file, then use this file to use a regular plot command to locate the approximate root. Submit the m-file and the corresponding plot. Here you will need to experiment with a range of values of 'm' Modify the m-file from (a) into a function file that can be used with the fzero function to compute a refined root. Submit your function and the solution it displays in the MATLAB command window. Solving systems of equations graphically, and with MATLAB Solve the following system of equations graphically. 0.77x1 + x2= 14.25 1.2x1 + 1.7x2 = 20 HINT: Treat x1 as the independent variable (the x-axis) and x2 as the dependent variable (the y-axis). Check your results by substituting them back into both equations.

Explanation / Answer

Q5) a)The code is:

x1=linspace(30,40,40);

x2_1=14.25-x1*0.77 % x2 for the first line

x2_2=20/1.7-1.2/1.7*x1 % x2 for the second line

plot(x1,x2_1,'r',x1,x2_2,'b');

from the graph using data cursor the solution is (38.77,-15.6) (x1,x2) respectively

actually it is (-15.59,38.76)

Q5B)

on putting those values in the equation we can clearly see that this is the solution

Q4) b)The code is:

myfun= @(g,m,c,t,e,v) (g*m/c*(1-e^((-c/m)*t)))-v; % defining function

v=42;

e=2.71;

g=9.81;

t=11;

c=13;

fun=@(m) myfun(g,m,c,t,e,v);

x=fzero(fun,50) %finding it's root

fprintf('the value of the root is %f ',x);

x=61.82(app.) is the solution

Q4) a)The code is:

write v as a function of m

m=linspace(10,70,100)

v=42;

e=2.71;

g=9.81;

t=11;

c=13;

for i=1:100

v(i)=(g*m(i)/c*(1-e^((-c/m(i)*t))));

end

plot(m,v) % plot of m vs v

just copy and paste you will get the plot

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