The 9.6-ft steel beam is being hoisted from its horizontal position by the two cables attached...

Transcribed Image Text:

The 9.6-ft steel beam is being hoisted from its horizontal position by the two cables attached at A and B. If the initial angular accelerations are a = 0.36 rad/sec and a2 = 0.58 rad/sec, determine the initial values of (a) the angular acceleration a (positive if counterclockwise, negative if clockwise) of the beam, (b) the acceleration of point C (positive if up, negative if down), and (c) the distance d (positive if to the right, negative if to the left) from A to the point on the centerline of the beam which has zero acceleration. 16" 2 16" 3.2' 3.2' 3.2' B C Answers: i rad/sec ft/sec (a) a = (b) ac= i (c) d = i ft The 9.6-ft steel beam is being hoisted from its horizontal position by the two cables attached at A and B. If the initial angular accelerations are a = 0.36 rad/sec and a2 = 0.58 rad/sec, determine the initial values of (a) the angular acceleration a (positive if counterclockwise, negative if clockwise) of the beam, (b) the acceleration of point C (positive if up, negative if down), and (c) the distance d (positive if to the right, negative if to the left) from A to the point on the centerline of the beam which has zero acceleration. 16" 2 16" 3.2' 3.2' 3.2' B C Answers: i rad/sec ft/sec (a) a = (b) ac= i (c) d = i ft