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Homework #27

# Homework #27 - was Ker Tame-Group.qflwﬂ¢E-15dww 19.”...

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Unformatted text preview: was Ker Tame-Group _.qflwﬂ¢E-15dww 19.” The object consists of an S-lb slender bar aided - a circular disk. When the object is released from rest in position 1, its angular velocity in position 2 is 4. n radfs. What is the weight of the disk? 'm'ng . _i “cf-Cw-Emm T3‘éI-AW 1.. 919:; mg} mp :2 é(,2?8’}>'+\$,l4‘?3v1b>(4lg = Z-‘H-S' + 5424—? tab In— mbr0£€¢i§ Sin} .1 iwb'; ”21.10 11., I 19.16 The moments of‘inertin ofgears A and B are L= t}. (12 kg- -m and Ig= [1.09 kg— -2.m GearA is connected to a torsional spring with constaotk=12 N- mired. If gent-B" is given an initial counterclockwise angular velocity of III) radio with the torsional spring unstretched throu what maximum counterclockwise angle does gearB ””1: We can mus-rm 3m Eran—us. Mar ueCa-mta—a 19.21] The mass of the homogeneous cylindrical disk is m = 5 kg and its radius is R = (12 m. The angle ,3 = 15°. The disk is stationary when a constant clockwise couple M = lﬂ N-m is applied to it. If the disk rolls without aligning, what is the velocity of the center of“ the disk when it has moved a distance i: = d.4 m? (Sec Active Example 15H.) H M5 Nu 5h? F‘r‘lﬁhFﬂVCJ £4331— H—ﬁ Wit. '1. '2..- Me + M300 so?) 5-21ng +% I“; (JD)(I:-£;:*) +(S)(‘i.5’i)(.4 mitts) 19.31 The masses of the bar and disk are 14 kg and 9 kg, respectively. The system is released frem rest with the bar horizontal. Determine the angular velocity of the bar when it is vertical ii' the bar and disk are eunneeted by asmmmpinam. IF we as5mw 1t»:- Lame—«J ' aﬂ'A— Ca. ‘FrietexLeSs “.5 5m& J M 1.... but [this -‘“‘ f3 ““1“ +13“ apiel— rem . HM doe;- w-L eh... m l; {M w—t waif—1a.: well-Q ”39' 13 nae—{noel (L1,) 5.1% 12k Jim J rim, his» tor-(J3; mLt)bML+ (mdlum 7' 31504901“ +(0‘XI'Z)L 21‘1682 #:5me 243m... = tr: WWW-co) + ‘IWW 1:9 = -" I; m... “E foot=4£>7§ ”ii/5.42;) # L ”.40 The 4—kg slender bar is pinned to a Z-kg slider at A and to a 4-lcg homogeneous cylindrical disk at B. Neglect the ﬁction foree on the slider and assume the! the disk rolls. If the system is released from rest wilh S = 60", what is the bar’s angular velocity when H = 0‘? {See Example 19.3.} big-l0 VlAE—wﬁiﬁs: M 5L"; (5 £3.03.” _O + #1306399+4-SJKIXA’Bj = 2L m Vﬁ‘a+%mnﬁ1rb+lf to” NW Mum-n tu- «Ir-salve 1 ”'1 I. D M- + N 4' I 1% 2% Whoa: ‘l’SIS MJQL ...
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Homework #27 - was Ker Tame-Group.qflwﬂ¢E-15dww 19.”...

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