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Homework #23

# Homework #23 - w meme m Kev Tame-Group 18.17 The moment...

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Unformatted text preview: w meme m Kev Tame-Group 18.17 The moment efinettie ef the pulley is 0.4 slug-HI. The coefficient of kinetic friction between the 5-“: weight and the horizontal surface ie .11.; = {1.2. Determine the magnitude of the acceleration of the 5-111 weight in eaeheaee. ,‘ﬂft Aqum ﬂ: 1-5 5mg” ﬂwjh r '6‘; “HM “MEWf. ﬁ-itEimm—ﬁu: 61":er (RI-:53) TL=ZIL T __ TI: Lo” U" T : L095” IL .. I 5" Til-’5‘? Iii-ignite) A :: LIED In%=-L) 18.30 Points B and C lie in the x—y plane. The y axis is vertical. The center of mass of the lit-kg arm BC is at the midpoint of the line from B to C, and the moment ofinertia of the arm about the axis through the center ofmaas that IS parallel to the z axis is l. 5 kg—mz. At the instant shown. the angular turntable-tintr and angular acceleration vectors of arm A3 are at” - ti. 6]: (radian) and a43= -{I'. 31: (radfa ).Tl1c angular velocity and angular acceleration vectors of arm BC are m3c= 0 4k (rams) and cac- 2k {rants 3. Determine the force and couple exerted on arm HEM lt—ti-xewﬁu - {96L {3...}? kit-ml Ln." f ‘3 3m") 1%“ [051 gig—E... = ﬁn”. - f3 (*I- ‘3'”) (5": - more = I‘1.0£aﬂ*—‘ 12:77—63] {SW} [9(374Lo) (fay: MECMGT (“Z/149," M5 4l83.3(.4rm§a) —- mac-(many == fed 1' LS" (1.) M5“:- éZﬁ—q N'M (j 18.53 The Z-kg slender bar and S-kg block are released from rest in the position shown. If friction is negligible. what is the block‘s acceleration at that instant? (See Example 18.5.] f @leeL maxim, NWT?— M «team. at =0 tar label; 2/“ Mt WM, \$1th attest) of #5:: :- “ﬁx \fx 1% f it “‘1’ CA; £1145.) S ““LW-‘(thrﬁxj A7) “Ft 1-32.) (mum rams. attests; meme-qt) l o .4 o o F} O I O “'5' O A} o o -J ans? 20*; .2: O .1 o #2 9H? «A A1: 51793 N: ambﬁogﬂ. A? 13.4? n ¢mmoL an: LfSF‘r!" m/mbﬁ I d = FIFJS'? rmwclp rim-aha?- TWEW 18.115 Pulleys! weighs 4 lb, £1 = {1.060 slug-ﬁg, and}; = 0.014 slug-ﬂ. Ifthe system is releasad ﬁ-am rest, what distance does the 16-113 weight fall in 0.5 s? A” 3 mbCe aﬁjmﬁ- Lav haw—2 ﬁgiﬁ-ﬁwd ﬁnLa-ug. 5-1;“:43, 5!” ﬂannel); [Ann-E tutu-S, ...
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