Question

Please help me understand this!! I'm so confused, are these anwers correct or not? I have no idea where these answers are coming from I can't figure out how they got them. Are these correct???? It dosent look like they were marked wrong. Sorry this is old study material from a previous class, I'm trying to piece it togther but completeyl lost. Please please please show me how to solve these transfer functions with very clear steps

the block diagram shown below: Determine the indicated transfer function relationships Comvine 6.9 t+103 D(s) 0.971+15s 1.1?! +10s 0.9 1+10s R(s) Es) 1+15 + XO xm (s) 2 dependant no denomincto 05 X(s) 11SS t+155 D(s) M(s)

Answer 1

DCS) 0.9 (S MS) x15ノ -t MeS) To Find (5) M(S) X CS 1十25 1S) (Ss)C2s)

X(s) p(S) To find 1-1 LtISS xls) ISS CI+25K

xlS) To Find xts) D(S) DCS) t loS -t D(S) it10 乂(5) +as は2S l-4l0S DUS)

() MCS) -X(S) DCS X(s) MCS) 0.9 DUS) 2- เวี 0 0.9 0