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Question

The equation of motion of a particle is x=acos(αt)2. The motion is
  1. periodic but not oscillatory
  2. oscillatory but not periodic
  3. neither periodic nor oscillatory.
  4. periodic and oscillatory

A
periodic but not oscillatory
B
neither periodic nor oscillatory.
C
periodic and oscillatory
D
oscillatory but not periodic
Solution
Verified by Toppr

The motion is oscillatory but not periodic because the oscillations are followed from the maximum displacement (negative extreme) at t=0, the corresponding echo is equal to π/2

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