Physics

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A car has a unibody-type frame and is supported by four suspension springs, each with
a force constant of 36100 N/m. The combined mass of the car’s frame and everything
inside it (the engine, the seats, the passengers,
etc.) is 1270 kg. Because of worn-out shockabsorbers, the car vibrates up and down every
time it is driven over a pothole.
What is the frequency of this vibration?
Answer in units of Hz

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