Question

To test the deflection of the uniform 260-lb beam the 130-1b boy exerts a pull of 41 lb on the rope rigged as shown. Compute the force supported by the pin at the hinge O. 2.7 6.0 1.54 Answer: 0 the tolerance is +/-2%

Answer 1

Given that, 27. 1 weight of beam Wy=860 lb weight of boy List Ik 60 tot wboy = 130lb. to a bo pull-Tension iT=41 les K 4.55 Freka body diagramm Kat furty As y diagram kat kubean of beam +boy 21.6 t 60 Ą I y A eta On=0. +2 Mo =0, d a

NAX1.5-W beam * 4.55 - Why tbl a 41x7.5–4149.1=0. NAX1.5-260x4.55-130x 6,4m 41875–4x9.1 =0. na = 269576 = 1497.066 lb. Y = 1797.066 lbs +^ Efy =o) — ба +а — Oьсят - Орт-т-Т=0 -Oy + 1497.066-260-130-41–41=0 Oy = 1797-066 – 472 Oy = 1385.066 tb. To=oy=1325,866 lb) force supported by the pin at the 09ะ ) :