A plot of instantaneous displacement against time by a student displayed a curve whose amplitudes at t=0, 3, 6, 9 and 12 secs are (0, 4, 0, -4 and 0 cms). The velocity of the particle will be maximum at

(0,6,12) secs

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(0,3,9) secs

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(3,6,12) secs

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(3,9,12) secs

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Solution

The correct option is A (0,6,12) secs
The data given here clearly displays a sine curve
The velocity will thus be maximum at mean positions, wherein the particle will be at t =(0,6,12) secs
The correct option is (a)

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