If a bungee jumper as a function of weight is derived as follows: f(m)=cdgmtanh((mgcd)t)v(t) where v= downward vertical velocity (m/s),t= time (s),g= the acceleration due to gravity (9.81m/s2),cd= a lumped drag coefficient (0.25kg/m), and m= the jumper's mass (kg). If one of the medical studies found that a bungee jumper's gets chances of sustaining a significant vertebrae injury increase significantly if the free-fall velocity exceeds 25m/s after 3s of free fall. i. Decide graphically by MATLAB on the weight that can be subject of injury ii. Use excel to calculate the weight that can be subject of injury based bisectional numeric method, stop at error less than a=0.01%