Reduce the second-order ODE to a system of two first-order ODEs;

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A U-tube manometer is a simple device used to measure the pressure in a fluid motion. It is filled
with water and the equilibrium level of the water levels in the two legs are at y = 0. In the absence
of friction, the level in the leg is governed by the ODE,
L
dy
dt²
:-2gy,
=
with L = 0.1m being the total length of the U-tube and g = 9.80m/s² is the gravitational acceleration
constant. At t= 0: y(0) = 0.025m, y(0) = 0.
(1) Reduce the second-order ODE to a system of two first-order ODEs;
Transcribed Image Text:A U-tube manometer is a simple device used to measure the pressure in a fluid motion. It is filled with water and the equilibrium level of the water levels in the two legs are at y = 0. In the absence of friction, the level in the leg is governed by the ODE, L dy dt² :-2gy, = with L = 0.1m being the total length of the U-tube and g = 9.80m/s² is the gravitational acceleration constant. At t= 0: y(0) = 0.025m, y(0) = 0. (1) Reduce the second-order ODE to a system of two first-order ODEs;
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