Dynamics HW 2 and 3 solution 9th ed

Dynamics HW 2 and 3 solution 9th ed - 7 Pin.A • which is...

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Unformatted text preview: 7 Pin .A. • which is attached to link A B , is constrained to move Ill the eirenlar slot CD. Knowing that at I 0 the pin starts from rest and moves so that its speed iticreases .at a 'constant rate of 20 minis', determine the magnitude of its total ileceileration when (I) 0 , (1 )) 2 s . VA L ) t v CC 4 t 2_0 z t 20 vyt,A 5 /Jv : 414414_ IS V c tk t v =- &ft 4 2 0 G z k4 "(51) 70 ta. = 2 6 - ^ "'", t to vkivi, 5 VBIA 2. VS(4 z it7 87- 2v4 \hze/4 7 ' 12-0 3 03.9 c-)/kr 2.• tlif 1‹...- 1.4 , • I " ( 0 - 0 ° 1 - L W = )65° Vc1/4 VAI 303,y, E 2 .142 Racing cars A and B are traveling on circular portions of a race track. At the instant shown, the speed of A is decreasing at the rate of 7 m/s 2 , and the speed of B is increasing at the rate of 2 m/s2. For the positions shown, determine (a) the velocity of B relative to A, (14 the acceleration of B relative to A. 5 L .v k V A 7 : - I (e 2. K.,k1 iv? 6'14 1-4 , L f r 4 it r- TvLQA Q stvceled ,A )A T C em k L e- c45,4e, NteA 1.9,6t 1 — uct \\.tivet r k T • y \ • k d 730a.`L 14 a T G n A e = - 8 ) 4 r - I 0 Z I 14"- 14/ 01.1C2_ ,A ; — ) 4 2 , • J 4 ( 4 1 0 - 2 1 6 Pita kLa tt 2 — 2 q 2 -1 (6 2 9 2 .)i0 - 3 o L i it°4k.„ 2'12-1(6 171,1-2_ \--1A 4 V -5 / A- - \ I I VA '.\ r _ \ I 8 / A - 3 0 3 .4 i- ,,, L I oN a Ag ic f a, A \.) A tro o u t e ) 6 Ck T 7.2 t/5 1 /- 12 .5 (f1 -L / 5 , 0 3 6 l c / 85 & 7- &-- 1 2- 5 .5 6 1 2 - 5 4 o Ti/A I 6 3 ‘, m /5 2 . n • • • • - a :A = — 7 3 0 0 4D30l 2000 )2 ' 7 6 5 300 it 3 e o A A / n at,. , 3 . L i - C o 0 4 z 2- ' 9- ( 0 ; 4 - — 3 3 7 5 J J v,y3 2_ A A i :.--- . — 2 -3 `t C p i — c l. " 7 j a t , 2.-,41(cto'1.56— ,14,;t .ItS° Lga2___0, _ + cedow ^ 0-1 A j3 1,11111 1,111Cf Lt. cs e ./.C 2 5 5 . 3 i_ 3.11) A ,1 3 / A = GT- 1 c t — it E•ct,39—/ C t O = • -2_g_5 A , 1 2 • S 6 f —/5 1 L /4 7 ,N horizontal pipe discharges; at point a strc;im of \cater into a. reser\ oir: Express ilte nusiiits of eurvabite of tile St 11 %am it point .B in terms of the magnitudes of tin.' \ elocities v A and VR• . vt2- a, -- c? ,0 e = = Vk Q I3 C 4D 6 04.6 V A VpAt V v 31;Calf, + (42.0 c n 4")?--& 6 ()0 ccf)16? 11.167 To study the performance of a race car, a high-speed motion- pictare camera is positioned at point A. The camera is mounted on a mechanism which permits it to record the motion of the car as the car travels on straightaway BC. D e t e r m i n e the speed of the car in terms of b, 0, and 0. , A e r r cej-e• t e b 6 -1 1 .t.b .- A t : b • A t e G P 7 - Csr 13' 9 ' 74v&-'9 o e cm 61 G eD ie k e .c is b u S ) , e - r e i c i t e 1 . ` 7 - * - V e • • r e co-32-0 4 , o " ; —6 6 7-7_? (43 A.14,744 vh,e4tv A r e O L . 5 C ., , k i . L , ‘ a.Ag t ote-es e-tt: on-7) )3 ) ot‘• s p 4k.e, er L I a- v,eri 04,c. t vh.evt cot L k- .1 1 6 0 0 woo K" 1 1 .1 7 1 For the race car of Prob. 11.167, it w as found that it took 0.5 s for the ear to traA el from the position 0 = 60° to the position 0 = 350....
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This note was uploaded on 05/17/2011 for the course EGM 3400 taught by Professor Matthews during the Summer '08 term at University of Florida.

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Dynamics HW 2 and 3 solution 9th ed - 7 Pin.A • which is...

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