Multiple choice

In a spring-mass system, the mass is 0.1 kg and the stiffness of the spring is 1 kN/m. By introducing a damper, the frequency of oscillation is found to be 90% of the original value. What is the damping coefficient of the damper?

  1. 1.2 N.s/m

  2. 3.4 N.s/m

  3. 8.7 N.s/m

  4. 12.0 N.s/m
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$\text{Given m= 0.1kg,k=1kN/m}\\ \text{Let,$w_d$ be the frequency of damped vibration & $w_n$ be the natural frequency of }$

Keep practicing — related questions