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 ?

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 ?

1. A

0.2 ms–1, 0.2ms–2

2. B

$0.8{\mathrm{ms}}^{-1},0.8{\mathrm{ms}}^{-2}$

3. C

$0.2{\mathrm{ms}}^{-1},0.8{\mathrm{ms}}^{-2}$

4. D

$0.8{\mathrm{ms}}^{-1},0.2{\mathrm{ms}}^{-2}$

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Solution:

Max. displacements = Amplitude
A = 0.05m ; T = 1.57sec
→velocity at mean position

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