==Magnetic tape is being fed over and around the light pulleys mounted in a device. At the instantshown, the acceleration and velocity of points A and B on the tape are aд 386 m/s² and VB 6.8m/s. If r = 0.12 m and R = 0.21 m, calculate the magnitudes of up, ap, VA, aŋ, and the angularvelocity and angular acceleration of each pulley at this instant. There is no slippage between thetape and the pulleys. (vp = 6.8 m/s, ap 22.7 m/s², VA = 6.8 m/s, aŋ =221.3 m/s², wi 56.7rad/s, w2 32.4 rad/s)===PBAR

. We are given the acceleration and velocity of two points on the tape, A and B, and the radii of…

Answered: = = Magnetic tape is being fed over and…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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5. The belt-driven pulley and attached disk are rotating with increasing angular velocity. At a certain instant, PA Up 15 ft/sec and aд an 188 ft/sec². If d 2 ft and R = 2.2 ft, calculate thei velocity and acceleration of point P on the belt for that instant. (up 12.5 ft/sec, ap = 11.42 ft/sec) = v, a
A block is supported by two links having 1m length. The two link have the same angular velocity ( 2 rad/s ) and angular acceleration (3 rad/s²) at a time when they make an angle of 45° with the cleaning. Find the acceleration of the block. Use vector notation W=2 m/s²
The crank link AB of the crank and slider mechanism has an angular velocity of WAB = 6 rad/s and an angular acceleration of a = 2 rad/s", both directed counterclockwise. The distances shown are hi = 6 in, h2 = 8 in and di 6 in. Also, a = 8, 6 = 15 %3D and c = 17. h2 WAB dAB What is the absolute value of the magnitude of the velocity of Point C at the given instant? vc =| in/s What is the absolute value of the linear acceleration of Point C at the given instant? in/s ас
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The disk shown in the figure rotates, at the instant shown, with a clockwise angular velocity of 40 rad/s and with a counter clockwise angular acceleration of 5 rad/s2. How long does it take before the disk comes to a temporary stop? a = 5 rad/s
In the mechanism shown below, link AB rotates at a constant angular velocity of 1.5 rad per sec counterclockwise. What is the acceleration of C along the channel? Assume the positive direction to be upwards and to the right. use relative motion
Q2. The arm AC of the cam follower mechanism shown in the figure rotates about A at a constant angular speed of 100 rev/min. A spring keeps pin B against the contour of the cam. If the equation of lobe shape is r 110 - 40cos 20 where r is in millimeters, calculate the magnitudes of the velocity and acceleration of pin B when 0=120. Also determine the radius of curvature of the path p and the time rate of change of the speed for this instant.
The robotic arm shown below can reach horizontal distances away from its pedestal by rotating linkage LAB about point A and by rotating linkage LBc about point B. At the instant shown in the figure, use an absolute motion analysis to write a symbolic solution for the horizontal velocity and the horizontal acceleration of point C located at the end of the robotic arm. The only quantities that may appear in your symbolic solution are LAB, LBC,0AB,0 BC,WAB,WBC ,a AB and aBC - LBC B OBC LAB АВ OAB
6. In the linkage below, the angular velocity of link 2 is 100 rad/s CCW. The linkage dimensions are given. When 02 is 90°, find 03, w3, and the velocity magnitude of point C on link 3 by using analytical method. A*A= 1.75 in A*B = 2.5 in AC = 5 in 02 B 3 Y 03 12 02 3 В A*
A load is raised 11 ft by the gears and wheel system below. Gear A is initially rotating at rest and accelerates uniformly to omega = 24 rpm in t= 10 sec and maintain then maintain this constant 24 rpm speed. The dimensions are rA= 1 in, rB= 9 in and rC=16 in. 2) After 10 sec, find the distance s2 in feet and in NC es needed to reach the 11 ft, find thetaC2(t), alphaA2, alphaB2 in rad/s^2, omegaA2(t), omegaB2(t) in rad/s, thetaA2(t), in rad and the distance s2 in ft that should be made to get to the 11 ft raising distance of the load. 3) Deduce the number of revolutions made by gear A and how long it will take, to raise the load up to 11 ft.
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