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QUESTION
Rod OB has length 2l and can rotate in the X-Y plane about its pinned end O. Rod OB is connected to rod AB at B. Rod AB has length 2l and is attached to a massless roller at A, so that A can move up a
Rod OB has length 2l and can rotate in the X-Y plane about its pinned end O. Rod OB is connected to rod AB at B. Rod AB has length 2l and is attached to a massless roller at A, so that A can move up and down.
