12-213. The man pulls the boy up to the tree limb C by walking backward. If he starts from rest when x, = 0 and moves backward with a constant acceleration a, = 0.2 m/s?, determine the speed of the boy at the instant yg = 4 m. Neglect the size of the limb.When x4 = 0, yg = 8 m, so that A and B are coincident, i.e., the rope is 16 m long.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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12-213. The man pulls the boy up to the tree limb C by walking backward. If he starts
from rest when XA = 0 and moves backward with a constant acceleration
as = 0.2 m/s?, determine the speed of the boy at the instant yg = 4 m. Neglect the
size of the limb.When x, = 0, yg = 8 m, so that A and B are coincident, i.e., the rope
is 16 m long.
8 m
Transcribed Image Text:12-213. The man pulls the boy up to the tree limb C by walking backward. If he starts from rest when XA = 0 and moves backward with a constant acceleration as = 0.2 m/s?, determine the speed of the boy at the instant yg = 4 m. Neglect the size of the limb.When x, = 0, yg = 8 m, so that A and B are coincident, i.e., the rope is 16 m long. 8 m
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