The 8.1-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 a₁ = 0.51 rad/sec² and 0₂-0.35 rad/sec², 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. 15" 2.7' Answers: (a) a= (b) ac= (c) d= α1 i IN IM 2.7' B 15" 2.7' C rad/sec² ft/sec² ft

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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The 8.1-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 a₁ = 0.51 rad/sec² and a₂ = 0.35 rad/sec², 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.
T
15"
2.7'
Answers:
(a) a =
(b) ac=
(c) d=
α₂
i
IN
i
2.7'
B
T
15"
2.7'
C
rad/sec²
ft/sec²
ft
Transcribed Image Text:The 8.1-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 a₁ = 0.51 rad/sec² and a₂ = 0.35 rad/sec², 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. T 15" 2.7' Answers: (a) a = (b) ac= (c) d= α₂ i IN i 2.7' B T 15" 2.7' C rad/sec² ft/sec² ft
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