MEDIUM
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A particle performing SHM has time period and path length 4 cm. The displacement from mean position at which acceleration is equal to velocity is
(a)Zero
(b)0.5 cm
(c)1 cm
(d)1.5 cm

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Important Questions on Oscillations
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The position co-ordinates of a particle moving in a coordinate system is given by
and
The speed of the particle is:

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Which one of the following graph shows correctly the variation with ?

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-projection of the radius vector of rotating particle is

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The displacement time graph of a particle executing SHM is given in figure: (sketch is schematic and not to scale)
Which of the following statements is/are true for this motion?
(A) The force is zero at
(B) The magnitude of acceleration is maximum at
(C) The speed is maximum at
(D) The is equal to of the oscillation at

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