Problem 1: a) Referring to the Figure, determine the number of teeth of gear D by long and short method if the cable has to move with vel= 0.2 m/sec. b) What is the direction of rotation of gear A when viewed from the right end? 890 C40 Intermediate Gear F. N-70 E D 760 mm GEAR TRAINS Problem 2: The overdrive mechanism of an automobile is shown below. When the overdrive is "in" the arm receives power from the engine and turns at engine speed. Gear A is fixed. The internal gear C is directly connected to and turns with the drive shaft which connects the transmission and differential. The rear axle ratio is 4.5, and the outside dia. of the tires is 32 inches. (a) Make a sketch of the engine to wheel rear wheel drive system, and label the parts. At a car speed of 100 km/h, determine the speed (rpm) of the engine (b) when the overdrive is not "in" (direct drive engine to differential), and (c) when the overdrive is "in." Sketch: B20' LH single Cable Calculations: 600 r/min 0.2 m/sec Calculations: A 23 Anm C65