Question

A 10 kg mass attached to a spring stretches the spring 2 m beyond its natural...

A 10 kg mass attached to a spring stretches the spring 2 m beyond its natural length. At
time t = 0, an external force of f (t ) = 20cos 4t Newtons is applied to the system, and the
system is damped by a force of 3 N per m/s of motion. Assuming an initial position at
equilibrium and no initial velocity, find the equation of motion and the phase angle.
You can use decimals here if you hate ugly fractions … (thousandths place). However, by
doing so your are admitting you are a lesser being, not worthy of being a mathematics
major (ie, engineering, physics, etc).

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Answer #1

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