Estimate the time (t) at which the deflection of Mjstrnet (u) is 5 mm given that the stiffness (k) is 610 6 N/m, the mass (m) is 105 kg, the damping coefficient () is 5% and the maximum permissible displacement (umax) is 50 mm. (No need to change the units). CVG 2181 Winter - 2024 Numerical Modelling in Civil Engineering 3 a. Use the graphical method to get an approximation of the time. b. Use the Newton-Raphson method with t0 = 0. Find the answer with 3 significant digits. c. Use the Secant method with t1 = 0 and t2 = 1. Find the answer with 3 significant digits.