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 240-kg counterweight solid concrete block located as shown. Neglect the mass of the supporting ams AB. 03m 05m 05m 125 m Part A Determine the moment of inertia of the plate and block about the hinged axis through A. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part ANSWER: Part B Determine the initial angular acceleration of the assembly when it is released from rest at 0 = 45°. Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. You did not open hints for this part ANSWER: a = rad/s

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 240-kg counterweight solid concrete block located as shown. Neglect the mass of the supporting ams AB. 03m 05m 05m 125 m Part A Determine the moment of inertia of the plate and block about the hinged axis through A. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part ANSWER: Part B Determine the initial angular acceleration of the assembly when it is released from rest at 0 = 45°. Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. You did not open hints for this part ANSWER: a = rad/s

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter8: Centroids And Distributed Loads

Section: Chapter Questions

Problem 8.59P: The cylindrical container will have maximum stability against tipping when its centroid is located...

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