19–38. The plank has a weight of 30 lb, center of gravityat G, and it rests on the two sawhorses at A and B. If the end Dis raised 2 ft above the top of the sawhorses and is releasedfrom rest, determine how high end C will rise from the topof the sawhorses after the plank falls so that it rotatesclockwise about A, strikes and pivots on the sawhorse at B,and rotates clockwise off the sawhorse at A.2 ft3 ft-1.5 ft-|-1.5 ft-3 ft

Write the expression of mass moment of inertia at point G. Write the expression of the mass moment…

Answered: 19–38. The plank has a weight of 30 lb,…

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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A string is wrapped around the inner hub of a 'yo-yo' and is fixed at A. The yo-yo has a mass of 4 kg and a mass moment of inertia Ig = 0.06 kgm². If the yo-yo is released from rest, determine the velocity of G after it drops 2 m. What would be the velocity of G if the yo-yo fell 2 m without being attached by the string at A? A 4 kg IG = 0.06 kgm? %3D 80 mm 200 mm
19-21. The spool has a weight of 30 lb and a radius of gyration ko = 0.45 ft. A cord is wrapped around its inner hub and the end subjected to a horizontal force P = 5 lb. Determine the spool's angular velocity in 4 s starting from rest. Assume the spool rolls without slipping. 0.9 fi P = 5 lb 0.3 ft
stion 5 The 20-kg wheel has a radius of gyration ko = 400 mm where O is the center of the wheel. If the wheel is subjected to a moment, M = (2t) N.m, where t is in seconds, determine its angular velocity when t- 4s starting from rest. Assume the wheel is subjected to rotation only (no translation). OA 16.0 rad/s B. 10.0 rads oc 8.0 rad/s 0 5.0 rad/s
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SOLVE USING PRINCIPLE OF WORK AND ENERGY
*21-44. The uniform plate has a mass of m = 2 kg and is given a rotation of w = 4 rad/s about its bearings at A and B. If a = 0.2 m and c = 0.3 m, determine the vertical reactions at the instant shown. Use the x, y, z axes shown mac and note that I 12
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