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GATE Mechanical 2024 | Question: 15

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​​​​A linear spring-mass-dashpot system with a mass of $2 \mathrm{~kg}$ is set in motion with viscous damping. If the natural frequency is $15 \mathrm{~Hz}$, and the amplitudes of two successive cycles measured are $7.75 \mathrm{~mm}$ and $7.20 \mathrm{~mm}$, the coefficient of viscous damping (in $\text{N.s/m}$) is

  1. $4.41$
  2. $7.51$
  3. $2.52$
  4. $6.11$
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