* A 5 m pole, leaning against a wall s1ips in such a way that its base is vdun moving away from the wall at a rate of 1.5 m/sec when the base is 4 m from the wall.How fast is the top of the ladder moving down the wall at that instant? C. - 2.0 m/sec D. - 1.5 m/sec A. + 2.0 m/sec + 1.7 m/sec B.
* A 5 m pole, leaning against a wall s1ips in such a way that its base is vdun moving away from the wall at a rate of 1.5 m/sec when the base is 4 m from the wall.How fast is the top of the ladder moving down the wall at that instant? C. - 2.0 m/sec D. - 1.5 m/sec A. + 2.0 m/sec + 1.7 m/sec B.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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do question no 14 only
Transcribed Image Text:Sutance of a
* A 5 m pole, leaning against a wall slips in such a way that its base is v vda
moving away from the wall at a rate of 1.5 m/sec when the base is 4 m
from the wall.How fast is the top of the ladder moving down the wall at
that instant?
A. + 2.0 m/sec
B. + 1.7 m/sec
C. - 2.0 m/sec
1..5 m/sec
D.
15. What is the sigma notation for (1/2 + 2/3 + 3/4 + 4/5 + 5/6 + 6/7}?
A. 5
Σ
k/ (k + 1)
k=0
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