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MHT CET 2021 (20 Sep, Shift 2) · Spring Systems

Spring Systems question from MHT CET 2021 (20 Sep, Shift 2)

Q70MHT CET 2021 · 20 SEP · SHIFT 2Medium

Spring Systems

A particle is suspended from a vertical spring which is executing S.H.M. of frequency 5 Hz5\text{ Hz}. The spring is unstretched at the highest point of oscillation. Maximum speed of the particle is (g=10 m/s2)(g = 10\text{ m/s}^2)

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Answer: (a)

  1. Spring unstretched at the top, so A=gω2A = \frac{g}{\omega^2} and vmax=gωv_{max} = \frac{g}{\omega}.
  2. ω=2πf=10π\omega = 2\pi f = 10\pi rad/s
  3. vmax=1010π=1πv_{max} = \frac{10}{10\pi} = \frac{1}{\pi} m/s
  4. So the answer is (a).
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