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EM306-Final-2007-1

# EM306-Final-2007-1 - Name If the beam AD is loaded as shown...

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Unformatted text preview: Name If the beam AD is loaded as shown, determine the horizon- taiforce P which must be applied to the wedge in order to remove ‘ it from under the beam. The coefﬁcients of static friction at the Wedge’s top and bottom surfaces are p.04 = 0.25 and pa; = 0.35, respectively. If P = 0, is the wedge self-locking? S e C )[7‘ 0 m 4 kN/m ‘___—___________—_ ' _____ MW : A Lime ’5 I" ‘ Alu' x; I i 7" 5 5‘ r _— 'w‘auw m 3&9? I . “wk/Vow (5\ M“ I g 3 '0 ‘ A, ﬂaw x, ,9 : 5“"m < 3r w A I la, "W (14 r ‘ a A E ‘ w I m... I I A z A ’9, am r ve ' I i- l l. 9 ’ ‘ I A ~ 09%)» sax I r . "" . tun” \ AKYW‘“ Q I mmmmmmmm Mg ””””” WW"—--zT-“~m.~3aps‘ 33W“ Y“) ‘P Q _ -‘c QHWWAB '5‘ The pumping unit is V beam ABC is horizontal, the force acting in _ , hich most be exerted by N a M 2/ head is 250 lb. Determine the torque M w the motor in order to overcome this load. The horse—head C weighs king beam ABC has ._____________% 60 lb and has a center of gravity at GC. The wal a weight of 130 1b and‘a center of gravity at 63, and the counter- 1: ‘ I weight has a weight of 200 lb and a center of gravity. at CW. The Q) C I 0 h pinnan, AD, is pin—Connected at its ends and has negligible weight; _—_~ 200 Lbs ‘08 ® 0 M ZP40 :14: 2‘ ~ . M) 3 2‘0“ 5([email protected] ...
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