The boom OAB pivots about point O, while section AB simultaneously extends from within section OA. Determine the velocity and cceleration of the center B of the pulley for the following conditions: 0 = 30°, 0 = 7 deg/sec, 0 = 8 deg/sec², 1 = 7 ft, 1 = 2.2 ft/sec, Ï = 2.3 ft/sec². The quantities and I are the first and second time derivatives, respectively, of the length / of section AB. Express your nswers as vectors in the e, and en directions. 8 1 26' 8 B ष्टं

The boom OAB pivots about point O, while section AB simultaneously extends from within section OA. Determine the velocity and cceleration of the center B of the pulley for the following conditions: 0 = 30°, 0 = 7 deg/sec, 0 = 8 deg/sec², 1 = 7 ft, 1 = 2.2 ft/sec, Ï = 2.3 ft/sec². The quantities and I are the first and second time derivatives, respectively, of the length / of section AB. Express your nswers as vectors in the e, and en directions. 8 1 26' 8 B ष्टं

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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Question

The boom OAB pivots about point O, while section AB simultaneously extends from within section OA. Determine the velocity and
acceleration of the center B of the pulley for the following conditions: 0 = 30°, 0 = 7 deg/sec, 0 = 8 deg/sec², 1 = 7 ft, 1 = 2.2 ft/sec, Ï =
-2.3 ft/sec². The quantities and I are the first and second time derivatives, respectively, of the length / of section AB. Express your
answers as vectors in the e, and en directions.
0
Answers:
VB =
ав =
(i
26'
8
A
O
er +
er +
B
eo) ft/sec
eo) ft/sec²

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