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NEET2013PhysicsOscillationsActual

A simple pendulum performs simple harmonic motion about x=0 with an amplitude ' a ' and time period ' T '. The speed of the pendulum at x=a / 2 will be

Options

  1. Aa T
  2. B3 ^2 a T
  3. Ca 3 T
  4. Da 3 2 T

Correct answer

C. a 3 T

Step-by-step solution

As simple pendulum performs simple harmonic motion. velocity, v= a^2-x^2 At, x= a 2 v= 2 T a^2- ( a 2 )^2 = 2 T 3 a^2 2 = a 3 T

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