= 0 and The man pulls. the boy up to the tree limb C by walking backward. If he starts from rest when XA moves backward with a constant acceleration a = 0.2 m/s², determine the speed of the boy at the instant YB = 4 m. Neglect the size of the limb. When XA = 0, YB = 8 m, so that A and B are coincident, i.e., the rope is 16 m long. Ув 11o bris Asbold n -XA C B Ув 8m Ans. VB = 1.41 m/s ↑

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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The man pulls. the boy up to the tree limb C by
walking backward. If he starts from rest when XA
moves backward with a constant acceleration a = 0.2 m/s²,
determine the speed of the boy at the instant YB = 4 m.
Neglect the size of the limb. When XA = 0, y = 8 m, so that
A and B are coincident, i.e., the rope is 16 m long.
Ув
11o bris Aloold i
-XA
C
B
=
Ув
8m
Ans. VB = 1.41 m/s ↑
Transcribed Image Text:0 and The man pulls. the boy up to the tree limb C by walking backward. If he starts from rest when XA moves backward with a constant acceleration a = 0.2 m/s², determine the speed of the boy at the instant YB = 4 m. Neglect the size of the limb. When XA = 0, y = 8 m, so that A and B are coincident, i.e., the rope is 16 m long. Ув 11o bris Aloold i -XA C B = Ув 8m Ans. VB = 1.41 m/s ↑
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