I was hoping someone could shed some light on the following question:-
I have a propped cantilever beam as shown below:-
I want to work out the vertical reactions at support A and B.
I have been told to work out the vertical reactions I need to take moments about support B and by doing so the reactions at support B "disappear" - my question is if I take moments about support B do ALL of the reactions disappear and if not which ones remain and which ones disappear?
I hope this makes sense.
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