a) Figure Q3a shows a stage 1 to stage 2 compound gear train through from Gears A, B, C to D. If the input shaft rotates at 1300 revolutions per minute (rpm), calculate the angular velocity (w) in rad/s at the output shaft of the compound gear train. See below for the number of teeth for Gears A, B, C & D. [10 marks] Gear A: 44 Teeth Gear B: 96 Teeth Gear C: 60 Teeth Gear D: 140 Teeth Gear B- -Stage 2 Gear A- Input shaft- Stage 1- Gear C- -Gear D -Intermediate shaft -Output shaft Figure Q3a b) A motor with a power rating of 3600 Watts is coupled to the input shaft of the pinion (or driver) Gear A as shown in Figure Q3a. Calculate the torque at the input shaft and at the output shaft. Assume no losses and 100% efficiency. [5 marks] c) Draw a typical indicator diagram of pressure versus volume (p-v) to illustrate the actual Otto cycle for a four-stroke reciprocating internal combustion [RIC] engine. Clearly label each part of the p-v indicator diagram and clearly indicate when the piston is at top dead centre and bottom dead centre. [10 marks]