5. The slider P can be moved inward by means of the string S, while the slotted arm rotates about point O. The angular position of the arm is given by 0 = 0.81- where O is in radians and t is in 20 | seconds. The slider is at r= 1.6 m when t= 0 and thereafter is drawn inward at the constant rate of 0.2 m/s. Determine the magnitude and direction (expressed by the angle relative to the positive x- axis) of the velocity and acceleration of the slider when t= 4 s. Ans. 0.377 m/s, 259.5°; 0.272 m/s, 19.4° y -x-

5. The slider P can be moved inward by means of the string S, while the slotted arm rotates about point O. The angular position of the arm is given by 0 = 0.81- where O is in radians and t is in 20 | seconds. The slider is at r= 1.6 m when t= 0 and thereafter is drawn inward at the constant rate of 0.2 m/s. Determine the magnitude and direction (expressed by the angle relative to the positive x- axis) of the velocity and acceleration of the slider when t= 4 s. Ans. 0.377 m/s, 259.5°; 0.272 m/s, 19.4° y -x-

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

5. The slider P can be moved inward by means of
the string S, while the slotted arm rotates about
point O. The angular position of the arm is given
12
where e is in radians and t is in
20
by 0 = 0.81 -
%3D
seconds. The slider is at r 1.6 m when t = 0 and
thereafter is drawn inward at the constant rate of
0.2 m/s. Determine the magnitude and direction
(expressed by the angle relative to the positive x-
axis) of the velocity and acceleration of the slider
when t= 4 s.
%3D
Ans. 0.377 m/s, 259.5°; 0.272 m/s, 19.4°
y
1.
S

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