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The system shown is hanging in equilibrium well above the ground. When the string is cut at t =0 , the time at which the spring is at its natural length will be (Take ^2=10 )

Options

  1. A1 6 ~s
  2. B1 2 ~s
  3. C1 3 ~s
  4. D2 3 ~s

Correct answer

B. 1 2 ~s

Step-by-step solution

T =2 k Now, t = T 4 , 3 ~T 4 , 5 ~T 4 etc.

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