Q3: z (kg) N (kW) Z = 803056.9/ A N = 69.V V. V (km/h) V (km/h) 3000 Graphs regarding the tractive effort, "Tractive force vs. Speed" and "Power vs. Speed", of a locomotive with 4 axles and an axle load of 21 t, are given incompletely in the figures above. On the "Tractive force vs. Speed" graph, the function at the engine zone is drawn and, on the "Power vs. Speed graph, the function for the adhesion zone is drawn. Since the coefficient of adhesion is constant and equals to 188 kg/t, the specific resistance at tangential section with no slope is we = 1.8+; kg/t and = P(1/100). Considering the information given: a-Calculate the maximum power of the locomotive, adhesion force, adhesion weight, and balancing speed. Re-draw the graphs of "Tractive force vs. Speed" and "Power vs. Speed" by completing the missing functions corresponding to zones; b-Knowing that the train accelerates from 70 km/h to 76 km/h in 21 seconds while climbing an uphill section of 11%o gradient, calculate the total load of the train; C- Calculate the maximum load of the unpowered vehicles that the locomotive can haul at a constant speed of 110 km/h while climbing an uphill section of 11%o gradient; and, d- Calculate the time that a stopping train needs to accelerate to 100 km/h for hauling a 305 t load of unpowered vehicles downwards a section with -2%o gradient and the traveled distance corresponding to that time. Note that values for each of the variables given in the Table below should be calculated specific to each of the discrete speed intervals (consider: AV