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lecture7

# lecture7 - an “J""I“ I I J:Forcésfaﬁd 0 O 0...

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Unformatted text preview: an}; “J". ."I“ I -'.' I'. ..' J ._ .- :Forcésfaﬁd 0 O 0 Distributed Loads Resultant Force wam / Lift load distribution on airplane wing mwwﬂ Wind Load distribution on building on bridge t F ‘— Q Coplanar Force Systems (Resultants Forces) What is the resultant of this force system? A) Will be the force that has the same force components in all directions as the original system & B) The force will be located at a point that will create the same moment, about any point, as the original force system Plan A ( AQEleanz 5’.) A5 POINT- Meme NT 0 F 30L 5 REM-ram __ _20 Agou‘r 730th \$90 MUST EQUM. gar-titan“!— oi: Aida oﬁthNm. France‘s Atsocrr ?°HVT ® Q "@ mowamom-w LS) +8083 +10 (to) C: What is the resultant of this force system? Q 30 lb 3ft 2ft @Ri" ZFv’o Q‘Mr Msws @% __ 2F~ \3O(X¢)= — sou: (19+) —?>oL'I-»C53’rﬂ raoxg =—l(ao—ISO Xe: — 1.39 ﬁ-T OR. THE QESUKTANT iS \zokbs LOCATED 3.33 (,1- To REF-T OF" 'PouvT C. __ —r"——_—_ A- 0 Four iorces are applied to a truss as shoanFigure. Determine the magnitude arg direction of the resultant of the four forces and the perpendicular distance dR from point A to the line of action of the resultant. {MA = cymbal) d-HKmU‘fmb-r am“; ii 2.3% -!| 83 {MA = HOKN-rhna. NOW ﬁMA— Eda 401mm“: \‘A 3¢KN Qi/V‘ PQforces and a couple are applied to a tangular plate as shown. Determine0 the magnitude and direction of the resultant of the force-couple system and the distance dr from point Ato the intercept of the line of action of the resultant ‘. ' g: Zszc’ION-GON F; = 3 o N a @F%: 2'33: 7SN_ sow _’>. 4 c F: “EON c—\-‘D.SN¢ T 250 mm #0 Roman/T Raﬁ ULT AMT A EU UAL:§'“ MOMer‘ Mfrs ¢ Gav PM?A ‘Mm‘: iMA 3% Q ON 00 ‘..ii.i,'...' _':._. Eq'osmdr= [email protected]:N3€o§£@:(‘— mm) ' Ar = .a- ﬂab-"W 0" O‘wﬂ/ SON 0Ur=' “3.239 (M /-:"""' I?“ do Qermine the resultant of the pa , lel force systeem shown. an locate the intersection of the line of action of the resultant with the xy— plane. E:‘,{S€;T L/ ...
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