The 9-m steel beam is being hoisted from its horizontal postion by the two cable
ID: 1827136 • Letter: T
Question
The 9-m steel beam is being hoisted from its horizontal postion by the two cables attached at A and B. If the initial angular accelerations of the hoisting drums are alpha1 = 0.5 ra/s^2 and alpha2 = 0.2 rad/s^2 in the directions shown, determine the correspondig angular acceleration alpha of teh beam, the acceleration of C, and the distance b from B to a point P on the beam centerline which has no acceleration
The correct answers are alpha = 0.05 rad/s^2, aC = 0.05 m/s^2 down, and b = 2 m right of B
Please show me all the corrct steps to solve this problem and I will rate you high
Explanation / Answer
THIS WILL HELPYOU) ?? = ?t ?? = change in angular velocity = (3200 rpm)(2? rad/rev)(1 min / 60 s) = 335 rad/s ? = angular acceleration t = time = 2.9 s Solve for ? and plug in your values: ? = ?? / t ? = (335 rad/s) / (2.9 s) ? = 116 rad/s
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