6-1 - Problem 3.15 The 80th box is held in place cm the...

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Unformatted text preview: Problem 3.15 The 80th box is held in place cm the smooth inclined surface by thc mp3 AH. Determine the lensinn in the rope and the nnrmul form: exerted an the box by the inclinad surfucc. Suluiion: Tlii- equilibrium uqualium {in lumb- 01‘ a uuurdinuw T sysicm with Ilie .r axis purnilul m the inclined surface} an: ‘ I 2 F1. : {BU linsinfifl“ — Tcusfili = I} 2 F1 LN — mu Ilaiunssu” — Tsinili = u " V . .50.? " Solution: The t‘I'uu-tmdy diagram Lt. slim-m. Fl‘um l'ruhlum 3.22 Wu knnw that [he weigh! is W : 13‘s Ll).TIIU1'Hfl]FL' T I" 5" in: max-:5 i5 - II I HE 111 HI 1' -'—"— _ 1 g 5.34 51ng 31.1 My LL50 kg' slug m # 5.34 Slug( ) -—" 35.1 kg The equilibrium uluufiuns I'ur lhu purl u'l‘ lln: ruin: fiyfilcln whcrc the mm: mm; an: juiucd an: E 1-11 : F cut-.311" — T Bin 5" = [1 E: F_..- : —F fiillJUn .1— Tom: 5" _ m5.“ .2 u where 3r," = Ln: rural. Suiting yicids F = 3.30 lh : 14.? N \ ...
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This note was uploaded on 01/21/2011 for the course ENGR 2009 taught by Professor Zeng during the Spring '10 term at Case Western.

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