A particle executing simple harmonic motion of amplitude

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A particle executing simple harmonic motion of amplitude 5 cm has maximum speed of 31.4 cm/s. Its oscillation per second

1. 4
2. 3
3. 2
4. 1

Correct Option: D

In S.H.M., v_max = A ω = A(2πf)

f =	v_max	=	31.4	= 1 per sec
	2πA		2(3.14) × 5