*17-68. The device acts as a pop-up barrier to prevent the passage of a vehicle. It consists of a 100-kg steel plate AC and a 200-kg counterweight solid concrete block located as shown. Determine the moment of inertia of the plate and block about the hinged axis through A. Neglect the mass of the supporting arms AB.Also, determine the initial angular acceleration of the assembly when it is released from rest at e = 45°. 0.3 m 0.5 m 0.5 m 1.25 m

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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*17-68. The device acts as a pop-up barrier to prevent the
passage of a vehicle. It consists of a 100-kg steel plate AC
and a 200-kg counterweight solid concrete block located as
shown. Determine the moment of inertia of the plate and
block about the hinged axis through A. Neglect the mass of
the supporting arms AB.Also, determine the initial angular
acceleration of the assembly when it is released from rest at
e = 45°.
0.3 m
0.5 m
0.5 m
1.25 m
Transcribed Image Text:*17-68. The device acts as a pop-up barrier to prevent the passage of a vehicle. It consists of a 100-kg steel plate AC and a 200-kg counterweight solid concrete block located as shown. Determine the moment of inertia of the plate and block about the hinged axis through A. Neglect the mass of the supporting arms AB.Also, determine the initial angular acceleration of the assembly when it is released from rest at e = 45°. 0.3 m 0.5 m 0.5 m 1.25 m
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