Consider the portion of an excavator shown. At the instant under consideration, the hydrauliccylinder is extending at a rate of 9 in./sec, which is decreasing at the rate of 3 in./sec everysecond. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constantrate of 15 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B.Determine the r and 9-components of velocity and acceleration.2.53.6A37°Answers:V, =iin./secVe =iin./secin/sec? ag =in./sec2ii

Answered: Image /qna-images/answer/8510800a-32d2-46db-b208-6ce2599937fa.jpg

Answered: Consider the portion of an excavator…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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The figure shows a rigid link AB of length 2 m which rotates anticlockwise about a fixed point at A at a rate of 2 rad/s, but which is decelerating in its rotation at 1 rad/s². At the instance of time shown in the diagram, with the link AB at 60 degrees to the horizontal, what is the y-component of the absolute acceleration of point B? (The positive sense of the x and y directions are given by the axes in the diagram). O O O O O w = 2 rad/s a = -1 rad/s² 7.93 m/s2 Don't Know -7.93 m/s² 5.93 m/s2 -5.93 m/s² B 60⁰
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Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 7 in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 14 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B.
Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 7 in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 10 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B. *********************ANSWER THIS PART ONLY************ Write the velocity and acceleration as vectors.v = (______ er + ______ eθ) in./seca = ( ______er + ______ eθ) in./sec2
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Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 8 in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 15 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B. 2.2' 2.9' A 420
The x- and y-motions of guides A and B with right- angle slots control the curvilinear motion of the con- necting pin P, which slides in both slots. For a short interval, the motions are governed by x 20 +t and y = 15 - t, where x and y are in millimeters and t is in seconds. Calculate the magnitudes of the velocity v and acceleration a of the pin for t = 2 s. Sketch the direction of the path and indicate its cur- vature for this instant.

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