1.A 24-inch pipeline branches into a 12-inch and an 18-inch pipe, each of which is 1 mile long, and they re-join back into a 24-inch pipe. If the flow rate is 30 CFS in the main pipe, how will the flow divide, assuming that f = 0.018 for both branches?
a).12” pipe 75% 22.5 CFS; 18” pipe 25% 7.5 CFS
b).12” pipe 10% 3 CFS; 18” pipe 90% 27 CFS
c).12” pipe 25% 7.5 CFS; 18” pipe 75% 22.5 CFS
d.12” pipe 50% 15 CFS; 18” pipe 50% 15 CFS
2.Knowing that at the instant shown crank BC has a constant angular velocity of 45 rmp (1.5? rad/s) clockwise, determine the acceleration (a) of point A. (b) of point D.