Asimple undamped spring-mass system is set into motion from rest by giving it an initial velocity of 100 mm/s. it oscillates with a maximum amplitude of 10 mm. what is its natural frequency?

f=1.59 Hz

Explanation:

Given that

Simple undamped system means ,system does not consists any damper.If system consists damper then it is damped spring mass system.

Velocity = 100 mm/s

Maximum amplitude = 10 mm

We know that for a simple undamped system spring mass system

now by putting the values

100 = ω x 10

ω = 10 rad/s

We also know that

ω=2π f

10 = 2 x π x f

f=1.59 Hz

So the natural frequency will be f=1.59 Hz.

answer:

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Explanation: