{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

InClassLecture27

# InClassLecture27 - 5—?0 Determine the resultant ﬂ of...

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 5—?0 Determine the resultant ﬂ of the system of distributed loads and locate its line of action with respect to the left support for the bean shown in Fig. P5-70. _II' Fig. P5-70 SOLUTION _ l _ 11 — 21750112) _ 750 N _ g _ xc1 - 3(2) - 1.333 m _ l _ A2 - 21750114) - 1500 N _ 1 _ xcz - 2 + 314) _ 3.333 m R = 2F = A1 + A2 = 750 + 1500 = 2250 N R = 2.25 kN Ans. + C ”A = A1xc1 + Aaxcz ?50(1.333) + 1500(3.333l = 6000 N‘I M d = -ﬁ — §999 = 2.6? . ~4 Ans. Rd A R ‘ 2500 II I: 5-?4 Determine the resultant R of the system of distributed loads and locate its line of action with respect to the left support for the been shown in Fig. P5—74. SOLUTION A1 = 400(2.5} = 1000 N RC! = 1.25 m A2 = 400(2-5} = 1000 N xcz = 3.75 I _ l _ A3 - 2(400)(2.5) - 500 N _ E _ xC3 - 2.5 + 3(2.5l - 4.16? m A4 = 800(2.5) = 2000 N X04 = 6.25 I R = 2F = A1 + A2 + A3 + A4 = 1000 + 1000 + 500 + 2000 = 4500 N R = 4500 N 4 = 4.50 kN J. Ans, + C "A = A1x01 + A2x02 + A3x03 + A4x04 = 1000(1.25] + 1000(3.75) + 500(4.16?} + 2000(6.25) = 19,834 N'I Rd — M d - EA - l§¢§§£ - 4 35 -a Ans ' A ‘ a ' 4500 ' ' m - 4.50 KN d-------1 _. "' I r----- J ' 5-?5 Determine the resultant R of the system of distributed loads and locate its line of action with respect to the left support for the bean shown in Fig. P5-75. SOLUTION 3. II M II :1:- II 3 II II» II x H m n + (m z DI II II Rd %(000)(31 = 900 lb 1.0 ft %13003131 = 450 lb 5.0 ft 300(3) = 900 lb 7.5 ft BF = A1 + A2 + A3 + A4 = 900 + 450 + 900 = 2250 lb 2250 lb 2 2.25 kip + Ans. Aaxca + A2xc2 + Aaxca + A4x04 900(1.0) + 450(5.0} + 900(?.51 = 9900 ft*lb M M d = -5 - 9399 = 4.40 ft Ans. A R - 2250 ...
View Full Document

{[ snackBarMessage ]}