Question

A wire stretched between two fixed supports, is
plucked exactly in the middle and then released. It
executes (neglect the resistance of the medium):
a) resonant vibrations (b) natural vibrations
c) damped vibrations (d) forced vibrations.
​

Answer 1

Answer:

C. Damping vibrations.

Explanation:

A wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes free vibrations.

A wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes free vibrations.Free vibrations are oscillations where the total energy stays the same over time. This means that the amplitude of the vibration stays the same. This is a theoretical idea because in real systems the energy is dissipated to the surroundings over time and the amplitude decays away to zero. This dissipation of energy is called damping.

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