The maximum displacement of an oscillating particle is 0.05m. If its time period is 1.57s(i) What is the velocity at the mean position ? (ii) What is its acceleration at the extreme position ?
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a
0.2 ms–1, 0.2ms–2
b
0.8 ms–1, 0.8ms–2
c
0.2 ms–1, 0.8ms–2
d
0.8 ms–1, 0.2ms–2
answer is C.
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Detailed Solution
Max. displacements = AmplitudeA = 0.05m ; T = 1.57secvelocity at mean position Acceleration at extreme position[-ve sign only direction]