Question

Consider the beam shown in (Figure 1). Suppose that t1 = 360 N/m, u = 180 N/m Follow the sign convention NC Value Units Submit Request Answer Part B Determine the internal shear force at point C Express your answer to three significant figures and include the appropriate units. uẢ ? Ve Value Units igure 1 of 1 Submit Previous Answers Request Answer * Incorrect; Try Again; 5 attempts remaining Part Determine the internal moment at point C Express your answer to three significant figures and include the appropriate units. μΑ O ? Mc = Value Units

Answer 1

for the given problem for the sake of simplicity. Let us free body diagsam of the applied easier shape. draw the beam and load in define the given w, = 360 N/m 180 N/m WE w D 1-11 E 180 180 180 I N -3 m 3 m RA RB from the we have equilibrium equation RAT RO (180 x 6 ) - (1 *6*180) + 1 Eify =0 RA TRB N S 1620 A about point Taking moment +) gives -(180x643) - [(5x6x180)(2x) Σ ΜΑ =O RB X6 6 RB 5400 as force of triang. section RB 900 works at 20 RA 720 distance which is in have Now, considering point e internal normal Nc force منا zero (as Efx=0) shear Internal @ Part 3 force A's similar above from from diagram, IBO F 180 x 90 * z E 1) 3 3 c

Therefore the be force dla gram can as drawn m Բ 90 GT D 90 100 3 m -3m RA RB Considering right part of diagram. + (S.P.) ( Rp ) + (180X3) +(90x3) above + £ x 3x90 Vc 900 + 540 + 270 + 135 Ve 45 N Downward (4) part c Internal moment at + 2 Mc ERB x3) + (1 80x3 * 2) +(90x38 ) *[**3*90) x2x3)] |--2700) + (810) +(405) +(270) Nim Mc - 1215 Counter clockwise Nom 1215 1 Mc
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