1. Suppose a homogeneous second order differential equation has fundamental pair {t, t³}. Solve the IVP with y(2) = 1 and y'(2) = -3. 2. A 0.2kg weight stretches a spring 0.1m. The system is submerged in oil with damping coefficient Y = 3. The weight is then lowered by 0.2m and released with a downward velocity of 1m/s. There is no external force. (a) Find the spring coefficient k. (b) Write down but do not solve the initial value problem corresponding to this situation. (c) Is this system underdamped, critically damped or overdamped? Show the associated calculation. (d) Sketch a reasonable graph of the solution. 3. Write down the general solution to the differential equation D³y + 4D³y = 0.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Just questions 1 and 3.

1. Suppose a homogeneous second order differential equation has fundamental pair {t, t³}. Solve
the IVP with y(2) = 1 and y′(2) = −3.
2. A 0.2kg weight stretches a spring 0.1m. The system is submerged in oil with damping coefficient
Y = 3. The weight is then lowered by 0.2m and released with a downward velocity of 1m/s.
There is no external force.
(a) Find the spring coefficient k.
(b) Write down but do not solve the initial value problem corresponding to this situation.
(c) Is this system underdamped, critically damped or overdamped? Show the associated
calculation.
(d) Sketch a reasonable graph of the solution.
3. Write down the general solution to the differential equation D³y + 4D³y = 0.
Transcribed Image Text:1. Suppose a homogeneous second order differential equation has fundamental pair {t, t³}. Solve the IVP with y(2) = 1 and y′(2) = −3. 2. A 0.2kg weight stretches a spring 0.1m. The system is submerged in oil with damping coefficient Y = 3. The weight is then lowered by 0.2m and released with a downward velocity of 1m/s. There is no external force. (a) Find the spring coefficient k. (b) Write down but do not solve the initial value problem corresponding to this situation. (c) Is this system underdamped, critically damped or overdamped? Show the associated calculation. (d) Sketch a reasonable graph of the solution. 3. Write down the general solution to the differential equation D³y + 4D³y = 0.
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