A 5 kg mass is attached to a spring with spring constant of 45 N/m. There is no damping and the forcing function is F(t) = 2 cos(3t). The object is initially displaced 0.7 m downward from its equilibrium position and is given an initial velocity upward of 0.7 m/s. Find the motion of the of object.
A 5 kg mass is attached to a spring with spring constant of 45 N/m. There is no damping and the forcing function is F(t) = 2 cos(3t). The object is initially displaced 0.7 m downward from its equilibrium position and is given an initial velocity upward of 0.7 m/s. Find the motion of the of object.
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Transcribed Image Text:A 5 kg mass is attached to a spring with spring constant of 45 N/m. There is no damping and the forcing
function is F(t) = 2 cos(3t). The object is initially displaced 0.7 m downward from its equilibrium
position and is given an initial velocity upward of 0.7 m/s. Find the motion of the of object.
x(t)
=
www
spring
not stretched
Fm
Fu
equilibrium
position
motion
x=0
x < 0
x>0
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