A evra pre ve or we (7 pts) In the two-stage planetary gear train shown in the figure below, internal ring gear 6 is fixed and crank arms C and D are attached to the output shaft. Internal ring gears 3 and external ring gear 4 form a compound wheel that rotates freely about the output shaft. The input is driven by an 18-kW motor at n = 3,000 rpm clockwise. N = 20, N3= 72, N = 24, 6 = 64. Question 8) Show that N2= 26 and Ns = 20. Problem 2: a) e Le mat d'auteur Vous n'av d'autres su plat consult to be used for this course materials The materials you consult your professo UNIVERSIT D'OTTAWA - LE DROIT D' UNIVERSITY OF OTTAWA MATERIAL PAR UTEUR Fixed Question 9) Suppose (only in this question) that crank arms C and D and the output shaft are fixed and internal ring gear 6 is free to rotate. Find the train value for the ordinary gear train (1,2,3,4,5,6). Question 10) Consider the real system, where crank arms C and D are attached to the output shaft and internal ring gear 6 is fixed. Identify the input, output and arm referred to in e = "-" for the real system n-n and find the speed of the output shaft. Input pro adre de mat ion Question 11) Assuming that the gear reducer operates at 100% efficiency, what is the output torque? AA b) Explain your problem-solving approach and solution steps in a paragraph. ed by sion ca Output (3 pts)