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Dynamics_HW6_solution_9th_ed

Dynamics_HW6_solution_9th_ed - 13.156 Cullars A and B of...

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Unformatted text preview: 13.156 Cullars A and B, of the same mass m. are moving toward each other with the velocities shown. Knowing that the coefi-‘acient of restitution between the coiiars: is 0 (plastic impact),'sh.0w that after impact (a) the common velocity of the collars is equal to haif the ( ‘. difference in their speed before impact, (1)) the him; in kinetic energy is: influx, + v3)?“ 9‘) “AVA ‘ “ABVB ‘- @HMQV MA +1143 we» —* —— - _L 'L ,1. 1 l.‘ h. ' and/,1, * 1"”U3 a '2‘ (VAZ-‘ZVAVB H/gZ) T T ' l’ V‘1 J" V?“ «V Z 1 Z I— L’ lm/A +— 1“ .5 -- ____I§__‘ + EVA/A V3 .. VLlLL \,/ 5L4 11 (”\x 35.156 s’l'wo Hiawatha]. hockey pucks are moving ()1: z: hmckey rink at the same: speed of 3 mi}: and in 1711111110? and opposiie directitms when they strike each other as shown Assuming 21. ctniafficimi of restfi 1.1-- tim‘m 2‘ .1, detcmiim: tin: magniiucie‘ and direction (£11m velocity ' of each puck afim' impact. vat-m “mam—vii) <2) I// UP:- (7/(107 /3 The three biocks shown are identical. Blocks 8 and C are at rest when block 3 is hit by block A, which is moving with a velocity VA of 3 ftfs. Afier the impact. which is; assumed to be perfectly plastic (820), the velocity of blocks A and B decreases due to friction, whiie block C picks up speed, until all three biocks are moving with the same velocity v‘ Knowing that 1113 coefficient of kinetic friction between all surfaces is ,u,‘ 20.20, determine (a) (in: time required for the three biocks to reach [he same velocity, (1)) the totai distance traveled by each block during that time. PROBLEM 13.182 EMMgfikit-¥C\& «5ng ”VFW-i7 began: hidek55('~&i)mrnsmiwm (5 Con.5eriI€-=X. Vc’ =0 lbs—maul £5 biicflidfi a 0 r a? Mil/H'Mevjfl‘flcz *— Mil/4 T‘MBVAI-rvvwcjz} MAEszmCI} 63.0150 UAILUJ/ZV/ 9M1». = dawn-75W}! -.- Lyn/l {VIZVA/Z [I] @_c ‘ / “v“ New Jack air 5T5i9m {lea-m Lahore, irvzfjaci umiil' (UL ode- Wow/d 5‘? 5""6 ,0 o _ 5,2666 mfl’vd‘l’imflfb +M¢flm Fifi/t- Z Wifil/Tu’lflV‘kva halal/"C VJ . ”C WMM filial NVfi —" fiAt : BMV 5P2—5L “C CE” +9 wt) F4”? 5 Why: Madc- STSiM : 3 mar/1(- yH/A " 347(3231 2 3741/ O . ”‘9’: * W " “‘V (F4 ‘w *9 «W WNM/ '- W \M “— W V” We M 5394+th (Lt) my (33 ML : AL NC a a At “ .yfi : 39/5 ‘ 643 Gk/Lfi 31.1 «@757, “It: 0.07%.5 i ljklfz " F“ J A 13.186 Ball B is hanging from an inextensible cord. An identical ball‘Ais released from rest when‘it is just touching the cord and drags through the'vertical-distance ILA —"-' 8 in. before striking balIB. Assuming e m 0.9 and-110 friction, determine the resulting maxi- mum vertical. dispEacement hf, of the bail B. V... 1 g 9 : ,_.__ L .1— 2..” Z Ca; 9 : J‘tfi- «1 _ J}— Fig. 913.136 , 7.17 " — 7__ c) 8 r 30 To mi" W? , Q ‘2, rm \],.\1 -_ uéjim 3/2x3221fi/52t3;¢+ 2 6‘552-(4/3 Vflt’: Wat onyx. {wimutsvi (KC-{7‘3 Lufmlses .l MTK 0"! A '13 :1- qfli “at“? A B " WWW} Mn» 7-5 miewei 1n. X~ gilt-aciiw } flwtfrm A: 5 X's-(IHFGiuo-h ’ $0 V6); 1- ‘13.. 0 I, a I V , - I - /, i M m/jt’ "Vi — :fl‘VAn WQ’MVAt/M5 ““W‘VBI Q) MA 5 (Grab. a-P reifztl—cd‘.m Pl “MAJ W (I) 0 ; WW - evtmewsme — wt ’ma +7 V5” V3! (MGMQ H) '— eVAmeaa‘tfv‘A; ’ w 9 /_ . VA: * VAgr : VAMQ VB! ’- Sl’tfltw ._ €3552£:(.n§§ + £3 q_ t I {L1- .g-n I Ham! W5 W? LUKE 2/2 (Law. \/ rum.) rafmsad’s Fafénffid @1217 ) ...
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