lecture22 - j 073 w =to—mtéf‘3é; .4 ~ d2....

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Unformatted text preview: j 073 w =to—mtéf‘3é; .4 ~ d2. ——-> 00 "'3‘5. .2 a @ 0:) M ‘We 3: +ZA‘6JEI ~ 1 _r I; :ath Cfinrdinafes ' I T' - MEEN221 1 (I? PATH Coo RD lNA—EE‘S ______________~_____‘ Velocity along a path 5“ -— rikmué f‘f: CurszTunc Q) 3’ ACCEL AROMGPATH 0g“ A motorcycle starts from rest at l = 0 and moves along a circular track with a 400-m radius. The tangential component of its acceleration is a, = 2 + 0.2t III/$2. When the magnitude of its total acceleration reaches 6 III/'82, friction can no longer keep the motorcycle on the circular track, and it spins out. How long after it Starts does it spin out, and how fast is it going? 2... @‘é‘rc rug-Ac p‘: Cc" :: :1 , a oa— «ME: + Lama .- Q +‘F2't3 35+ MAW} W 64% 4&0 g: '2. 10m QCLé-Jr-Qn} —__—_ (2041/51 Cage-\rcunft'a/fl 1 13‘ Caqrzg 2 #00 37:5 x < 9T3 Y(x) ~100>sm(2n 100) Y(X)=i.sin "Ln.va2 I dXZ 25 50 WHAT \% “THE ACCELFVZATWW t. 0-Y- CAa Co} AJ'B) c fire A = - i@ Q]; 16:4/3 S Wé=1¢;/S We” cg/s 2 7° v6-9 @C Vt:- 904/5 m: a _b- a g RA: qrfifé + (ES. em 9 = Oéé + QSWQZ A cm A ao$3$T OVA: 085+ qg.°}3 4/52- ‘ap €8.93 5752+ B (Z :2- 757. S S—T’ fl“ 13.3451 0&3 77 ‘5'“ ,./ : $77 Expo “k 37. ~ : 4‘45! 00; \ ’00 (NW9) ‘Yzams‘S-T b 1': -- 2 x 1 A ,L ' - - 77.3; Gib. ' = i. (1:1) 937 7. fl) QK/k-géj Olly-L l MO / ad ‘- V/‘JETS‘QT ; 2:: - “9579 / e @ B O o fiagja _l_ __= l I 3 ____ 7.377 -' P a + tqwu-y)?‘ /1 99. 3 J? c . \o a c7 57 v 9 R- Q? 3 37.334‘ 1/- A cable is wrapped around drum A from which a bucket B is suspended . If the radius of the drum is 18 inches and it is rotating at 5 rad/ sec and increasing speed at 1 rad/ sec2 What is velocity and acceleration of of the B. (mag. & direction). 6"“ K F "A cable is wrapped around drum A from which a bucket B is suspended . If the radius of the drum is 18 inches and it is rotating at 5 rad/ sec and increasing speed at 1 rad/ sec2 What is velocity and acceleration of of the B. (mag. & direction). _.> __I- m -.—_ Wren. + (Ufa 63:; finbLe‘ O = rr err ~+ Qfié) ea ("' (‘ R=13” Motor & fixed pulley Cable wrapped around pulley that is fixed to the motor Shaft Motor Speed = gQrpm -.-. C c: in $1" a) What is the direction and speed of Pulley A & B? b) What is the velocity (mag and dir) of the bucket [2? (‘ R=13” Motor & fixed pulley Cable wrapped around pulley that is fixed to the motor Shaft Motor Speed = 20 rpm: C. one-i- C. a) What is the direction and speed of Pulley A & B? b) What is the velocity (mag and dir) of the bucket D? 0O GJQ Vbx o o - rr/Src. alum/5 :QCH'QB 29> 9%: l .430 C o N @vm‘rs‘r A W 2 QABLJ: mm: ME: \‘N/Se-C A 0 (3:7. Raw/gm: \gu-éea 9A: \.6—| (GA/35¢ O CA- r514:- (UV); CU MD: was; 1‘ A I a is wrapped around drum A from which a bucC suspended as shown. Also attached rigidly Ce drum is a pulley around which is wrapped another cable suspending bucket C as shown. If the radius of the drum is 18 inches and the pulley is 10_in_ches, and the drum and pulley are rotating at 5 rad/ sec and increasing speed at 1 rad/ sec2 What is velocity and acceleration of B and C?. (mag. & direction). A .2 is wrapped around drum A from which a bucC suspended as shown. Also attached rigidly Ce drum is a pulley around which is wrapped another cable suspending bucket C as shown. It the radius of the drum is 18 inches and the pulley is 10 inches, and the drum and pulley are rotating at 5 rad/ sec and increasing speed at 1 rad/ sec2 What is velocity and acceleration of B and C?. (mag. & direction). ‘5.- MJU..«€.M‘CLL.L¢% a} 0.9.4 wa Q/W-f-w" e—Vul—L 6‘ 7:: 9%Q (3357/5 ...
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lecture22 - j 073 w =to—mtéf‘3é; .4 ~ d2....

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