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MHT CET202415 May 2024Morning ShiftPhysicsOscillationsActual

Starting from mean position, a body oscillates simple harmonically with a period 'T'. After what time will its kinetic energy be 75 % of the total energy? ( 30^ =0.5 )

Options

  1. AT 8
  2. BT 12
  3. CT 16
  4. DT 24

Correct answer

B. T 12

Step-by-step solution

array ll & KE =75 % of TE & 1 2 ma ^2 ^2 ^2 t = 75 100 1 2 ma ^2 ^2 & ^2 t = 3 4 & t = 3 2 & t = 6 & 2 ~T t = 6 t = T 12 array

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