Chapter 163 Rotation About Fixed Axis *16-8. For a short time, gear A of the automobile starter rotates with an angular acceleration of a (50) rad/s where or is in rad/s. Determine the angular velocity of gear B after gear A has rotated 50 rex starting from rest. The radii of gears A and B are 10 mm and 25 mm, respectively. w=33 dt α = dw dt α de coda. (w) dw = α dt - w dw = de 5002 Probs. 16-7/8 A has rolated 50 revs 50 2π -100 rad 3/2 w³ = 50 (100) 1= 821 8781 rad/s Especially this!! VA WA Bwa wa TA (WB) = 10 → =w.dw - 50 20 w/ du 50 d0 Please give -Sw" 3 d3= 50 de 23 = BOO+C+ = 600 10mm (821 8781) 328.75 rad/s 25 mm .. 328.75 rad/s a break down of this step

Determine the angular velocity of the slotted link AC at this instant measured counterclockwise. The disk rotates with the angular motion shown. The peg at Bis fixed to tho disk. Suppose that w-6 rad/s, a= 10 rad/s, r=0.6 m, and a= 1.05 m. (Ekure 1) Express your answer using three significant figures. Enter positive value if the angular velocity is and negative value if the angular velocity is clockwise. wAC = 0 rad/s Subimil Previous Answers v Correct Figure 1 of 1 Part B Determine the angular acceleration of the slotted link AC at this instant measured counterdockwise. 30 Express your answer using three significant figures. Enter positive value if the angular acceleratie counterclockwise and negative value if the angular acceleration is clockwise. AE it vec rad/s Submit Previous Answers Request Answer

$16-77 16-77. The planetary gear system is used in an automatic transmission for an automobile. By locking or releasing certain gears, it has the advantage of operating the car at different speeds. Consider the case where the ring gear R is held fixed, wR = 0, and the sun gear S is rotating at @R @s = 5 rad/s. Determine the angular velocity of each of the planet gears P and shaft A. WR R 20.000 32 C ws 40 mm st 80 mm 40 mm Prob. 16-77 A

Incorrect The Scotch-yoke mechanism converts rotational motion of the disk to oscillatory translation of the shaft. Using the values e = 30°, w = 5.4 rad/s, a = 2.1rad/s?,r = 230 mm, d = 610 mm, and ß = 16°, determine the velocity and acceleration of point P of the shaft. The velocity and accelerations are positive if to the right, negative if to the left. Answers: Vp = -0,563 m/s ap = i -6.195 m/s?

12. The gear A on the drive shaft of the outboard motor has a radius r = 0.5 in. and the meshed pinion gear B on the propeller shaft has a radius r = 1.2 in. . (a) Determine the angular velocity of the propeller in t = 1.5 s, if the drive shaft rotates with an angular acceleration ,a = (400t³) rad/s², where t is in seconds. The propeller is originally at rest and the motor frame does not move. (b) Determine the magnitude of the velocity and acceleration of point P located on the tip of the propeller at the instant. t = 0.75 s 2.20 in.

X Incorrect The flywheel turns clockwise with a constant speed of 450 rev/min, and the connecting rod AB slides through the pivoted collar at C. For the position 0 = 34º, determine the angular velocity WAB (positive if counterclockwise, negative if clockwise) of AB by the method of this article. (Suggestion: Choose a point D on AB coincident with C as a reference point whose direction of velocity is known.) Answer: WAB -20" 13.92 B rad/sec

(B) Determine the angular velocity of the link DC. The input link AB rotates at 60 rev/min in a clockwise direction. C 300 mm 600 mm B 300 400 mm 450 A DE

For a short time, gear A of the automobile starter rotates with an angular acceleration of 450t2-60t rad/s2, where t is in seconds. Determine the angular velocity and angular displacement of gear B when t B are rA %3D 4s, starting from rest. The radii of gears A and 10 mm and TB 25 mm, respectively. A B Select one: Ps 10:03 PM ENG 4/17/2021 19

A motor gives gear A an angular acceleration of a1 = (0.250' + 0.5) rad/s², where 0 is in radjans. If this gear is initially turning at (wa)o = 20 rad/s, determine the angular velocity of gear B after A undergoes an angular đisplacement of 10 rev. %3D (wab = 20 rad/sS 0.05 m 0.15 m The angular velocity of gear B is

For the shown position of the crank-shaft mechanism it is known that =95, =3 . OA=R=0,1 m, ZBOA=90 H ZOAB=60. Determine: a) velocity and acceleration of the point A: b) angular velocity and angular acceleration of the body 2; c) velocity and acceleration of the body 3. 60