*20-52. The crane is rotating about the z axis with aconstant rate wn = 0.25 rad/s, while the boom OA is rotatingdownward with a constant rate w, = 0.4 rad/s. Compute thevelocity and acceleration of point A located at the top of theboom at the instant shown.20-53. Solve Prob. 20-52 if the angular motions areincreasing at o = 0.4 rad/s² and in = 0.8 rad/s² at theinstant shown.w = 0.25 rad/s40 ftwz = 0.4 rad/s30°

Given, (a) ω→1=0.25k rad/sα→1=0 rad/s2r→o=0 mv→o=0 ft/sa→o=0 ft/s2ω→A/O=-0.4 i rad/sα→A/O=0 rad/s2

Answered: *20-52. The crane is rotating about the…

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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= At the instant shown rod AB has an angular velocity WAB 4 rad/s and an angular acceleration AB 2 rad/s2. Determine the angular velocity and angular acceleration of rod CD at this instant. The collar at C is pin connected to CD and slides freely along AB. = a) using the relative motion analysis and the contact conditions. A 4 rad/s AB= 2 rad/s² WAB 60° 0 = 0.75 m -0.5 m В B D
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The disk rotates about the shaft SS, while the shaft is turning about the zz axis at a rate of ωzωzomega_z = 6 rad/srad/s , which is increasing at ααalpha = 2.5 rad/s2rad/s2 . No slipping occurs. Determine the xx, yy, and zz components of the velocity of point BB on the disk at the instant shown using scalar notation. Determine the xx, yy, and zz components of the acceleration of point BB on the disk at the instant shown using scalar notation.

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