hi can you please answer question 8 both parts thank u so much OleksandrAll Me29/07/2021, 11:13 a.m.Introduction to momentsO A uniform plank has length 6m and mass 40 kg. It is placed on horizontalground at the edge of a vertical river bank, so that 1.5 m of the plank isprojecting over the edge, as shown in Figure 8.27.6m1.5mFigure 8.27How far can a man of mass 70 kg walk along the plank without tipping it?6 Two young children of mass 30 kg and 35 kg sit at the ends of a see-sawEach child is 2.5 m from the fulcrum. Their father whose mass is 75 kg joinsthem. Where must he sit in order for the see-saw to balance?O A light rod, 2m long is hanging horizontally supported by vertical strings ateach end. The maximum tension which the strings can exert is 80 N.A lamina is a flatobject that hasnegligible thicknesscompared with itsength and widthAlong what range of positions on the rod is it safe to hang a 10kg mass,O A sign consists of a uniform rectangular lamina of weight 50 N. It issuspended in equilibrium in a vertical plane by vertical light chainsattached to the sign at the points A and B, with AB horizontal, as shownin Figure 8.28.0.45 m0.15mAB.Figure 8.28li) Draw a diagram showing all the forces acting on the sign.lii) Find the tensions in the chains.® AB represents a uniform horizontal shelf of weight 30N which is supportedat X and Y. Blocks are placed along the shelf, as shown in Figure 8.29.30 cm120 cm30 cm60 cm2 kg3 kg5 kgA45 cm135 cmFigure 8.29i)Find the reaction forces of the supports on the shelf at X and Y.li What is the greatest mass of an object which can be placed at Dwithout the shelf tipping?

Answered: Image /qna-images/answer/c14f9f3f-66c7-4786-858f-448b8bfc4a61.jpg

AB represents a uniform horizontal shelf of weight 30N which is at X and Y. Blocks are placed along the shelf, as shown in Figure 8.29. supported 30 cm 30 cm 120 cm 60 cm 2 kg 3 kg 5kg A 45 cm 135 cm Figure 8.29 l Find the reaction forces of the supports on the shelf at X and Y. In What is the greatest mass of an object which can be placed at D without the shelf tipping?

AB represents a uniform horizontal shelf of weight 30N which is at X and Y. Blocks are placed along the shelf, as shown in Figure 8.29. supported 30 cm 30 cm 120 cm 60 cm 2 kg 3 kg 5kg A 45 cm 135 cm Figure 8.29 l Find the reaction forces of the supports on the shelf at X and Y. In What is the greatest mass of an object which can be placed at D without the shelf tipping?

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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