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A mass of 1 kg is attached to two identical springs each with stiffness k = 20 kN/m as shown in the figure. Under frictionless condition, the natural frequency of the system in Hz is close to
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- 32
- 23
- 16
- 11
Correct Option: A
Natural frequency of the system
where, ke = k + k
= 2k = 2 × 20 = 40 kN/m
= 200 rad/s = 32 Hz
