Why in the mass-spring system the external force is equal to:

What is each term of the equation?

Another question:

The mass-spring system with free vibrations are external force? And with vibration damped?

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- Dec 18th 2009, 07:32 AMApprentice123Mass-Spring System
Why in the mass-spring system the external force is equal to:

What is each term of the equation?

Another question:

The mass-spring system with free vibrations are external force? And with vibration damped? - Dec 19th 2009, 04:46 AMHallsofIvy
mass*acceleration= total force.

mass*acceleration is

The spring force is -kx and you are given so t he total force is .

Quote:

Another question:

The mass-spring system with free vibrations are external force?

Quote:

And with vibration damped?