8. feet. The mass is initially released from rest from a point 3 feet below the equilibrium position, and the subsequent motion 3 A mass weighing 16 pounds stretches a spring takes place in a medium that offers a damping force that is numerically equal to the instantaneous velocity. Find the equation of motion x(t) if the mass is driven by an external force equal to f(t) = 10 cos(3t). (Use g = 32 ft/s? for the acceleration due to gravity.)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Question
8
A mass weighing 16 pounds stretches a spring
feet. The mass is initially released from rest from a point 3 feet below the equilibrium position, and the subsequent motion
3
1
the instantaneous velocity. Find the equation of motion x(t) if the mass is driven by an
2
takes place in a medium that offers a damping force that is numerically equal to
external force equal to f(t)
= 10 cos(3t). (Use g
= 32 ft/s? for the acceleration due to gravity.)
x(t)
ft
Transcribed Image Text:8 A mass weighing 16 pounds stretches a spring feet. The mass is initially released from rest from a point 3 feet below the equilibrium position, and the subsequent motion 3 1 the instantaneous velocity. Find the equation of motion x(t) if the mass is driven by an 2 takes place in a medium that offers a damping force that is numerically equal to external force equal to f(t) = 10 cos(3t). (Use g = 32 ft/s? for the acceleration due to gravity.) x(t) ft
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