The velocity v of a falling parachutist is given by where g = 9.81m/s . For a parachutist with a drag coefficient c = 16kg/s, compute the mass m so that the velocity is v = 20m/s at t = 8s. Use the following initial guess - [mlower , mupper ] = [5, 130] for bracket methods, minitial = 50 for open methods. If there is no specified relative error percentage or number of iterations, please use relative error percentage = 0.0001% and maximum iterations= 50.

o With the Secant method, - with minitiali = 50 and Minitial2 = 55, iterate until s = 0.1% then save [root, the number of iteration] on EX2_7.dat, - with minitial1 = 50 and Minitial2 = 55, iterate 10 times then save [root, Ea]on EX2_8.dat