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AP EAMCET2003PhysicsOscillations

An object is attached to the bottom of a light vertical spring and set vibrating. The maximum speed of the object is 15 ~cm / s and the period is 628 milli-seconds. The amplitude of the motion in cm is:

Options

  1. A3.0
  2. B2.0
  3. C1.5
  4. D1.0

Correct answer

C. 1.5

Step-by-step solution

v_ =15 ~cm / s =15 10⁻² ~m / s T=628 ~ms =628 10⁻³ ~s v_ =A v_ =A 2 T 15 10⁻²=A 2 3.14 628 10⁻³ A= 15 10⁻² 628 10⁻³ 2 3.14 =15 10⁻³ ~m =1.5 ~cm

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