4. The link EF of mass 2 kg is welded at point A to a link ABC of mass 2 kg, which rotates about a pivot B. A spring of constant k =300 N/m and of un-stretched length 150 mm is attached to the link ABC as shown. Knowing that in the position shown the assembly has an angular velocity of 10 rad/s clockwise, (a) Determine the angular velocity when the assembly has rotated 90° clockwise, (b) Find the corresponding angular acceleration of part (a), and (c) Find the corresponding reaction force at point B. (For (b) and (c), set up all the required equations with a Free-Body-Diagram 150 mm and a Kinetic Diagram) 150 mm 150 mm, 150 mm 360 mm

4. The link EF of mass 2 kg is welded at point A to a link ABC of mass 2 kg, which rotates about a pivot B. A spring of constant k =300 N/m and of un-stretched length 150 mm is attached to the link ABC as shown. Knowing that in the position shown the assembly has an angular velocity of 10 rad/s clockwise, (a) Determine the angular velocity when the assembly has rotated 90° clockwise, (b) Find the corresponding angular acceleration of part (a), and (c) Find the corresponding reaction force at point B. (For (b) and (c), set up all the required equations with a Free-Body-Diagram 150 mm and a Kinetic Diagram) 150 mm 150 mm, 150 mm 360 mm

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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