A spring hangs vertically from the ceiling and a mass is attached to its free end. When the mass is pulled down and released, it oscillates vertically with simple harmonic motion of period $T$ . The variation with time $t$ of its distance from the ceiling is as shown. Which statement gives a correct deduction from this graph?
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Speed is maximum at the mean position
Distance between extreme position $ = 2A$ .
$2A = 70$
$A = 35\ cm$
Distance between extreme position $ = 2A$ .
$2A = 70$
$A = 35\ cm$
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