Solve The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angularacceleration a of the bar when it is released from rest in a position where the bar has been rotated clockwise 26° from theposition shown. Neglect any sag of the spring, whose mass is negligible. The angular acceleration is positive ifcounterclockwise and negative if clockwise. The mass m of the bar is 27 kg, the length / is 390 mm and the spring constantk is 712 N/m.A44104BAnswer: a =rad/s2the tolerance is +/-2%

Answered: Image /qna-images/answer/28599785-e714-4761-a90f-f4837b0a3a82.jpg

Answered: The spring is uncompressed when the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The 10-kg rod AB shown is confined so that its ends move in the horizontal andvertical slots. The spring has a stiffness of k = 800N/m and is unstretched when θ = 0˚.Determine the angular velocity of AB when θ = 0˚, if the rod is released from rest when θ = 30˚.Neglect the mass of the slider blocks. It’s frictionless.
The vertical bar AB has a mass of 150 kg with center of mass G midway between the ends. The bar is elevated from rest at θ = 0 by means of the parallel links of negligible mass, with a constant couple M = 5 kN∙m applied to the lower link at C. Determine the angular acceleration α of the links as a function of θ and find the force B in the link DB at the instant when θ = 30°.
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