2. Find the torque produced by the quadriceps muscles in a) and b) if Qy = 400 N. For the knee on the left (normal patella) the perpendicular distance () from the knee joint centre to the patellar tendon = 11 cm. For the knee on the right (knee with a patellectomy) the distance ((') = 5 cm. a = 260 while 0 = 110. & x 1= l' TO 400 N. 39.55 19. 63