A 4-foot spring measures 8 feet long after a mass weighing 8 pounds is attached to it. The medium through which the mass moves offers a damping force numerically equal to 2 times the instantaneous velocity. Find the equation of motion if the mass is initially released from the equilibrium position with a downward velocity of 7 t/s. (Use g- 32 ft/s for the acceleration due to gravity.) x(t) = Find the time at which the mass attains its extreme displacement from the equilibrium position. What is the position of the mass at this instant? The extreme displacement is x- feet

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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A 4-foot spring measures 8 feet long after a mass weighing 8 pounds is attached to it. The medium through which the mass moves offers a damping force numerically equal to \(\sqrt{2}\) times the instantaneous velocity. Find the equation of motion if the mass is initially released from the equilibrium position with a downward velocity of 7 ft/s. (Use \(g = 32 \, \text{ft/s}^2\) for the acceleration due to gravity.)

\(x(t) = \_\_\_\_\_\_\)

Find the time at which the mass attains its extreme displacement from the equilibrium position.

\(t = \_\_\_\_\_\_\)

What is the position of the mass at this instant?

The extreme displacement is \(x = \_\_\_\_\_\_\) feet.
Transcribed Image Text:A 4-foot spring measures 8 feet long after a mass weighing 8 pounds is attached to it. The medium through which the mass moves offers a damping force numerically equal to \(\sqrt{2}\) times the instantaneous velocity. Find the equation of motion if the mass is initially released from the equilibrium position with a downward velocity of 7 ft/s. (Use \(g = 32 \, \text{ft/s}^2\) for the acceleration due to gravity.) \(x(t) = \_\_\_\_\_\_\) Find the time at which the mass attains its extreme displacement from the equilibrium position. \(t = \_\_\_\_\_\_\) What is the position of the mass at this instant? The extreme displacement is \(x = \_\_\_\_\_\_\) feet.
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