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Question

The displacement of an oscillating particle varies with time (in seconds) according to the equations y(cm)=sinπ2(t2+13). The maximum acceleration of the particle is approximately.

A
5.21cm/s2
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B
3.62cm/s2
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C
1.81cm/s2
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D
0.62cm/s2
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Solution

The correct option is D 0.62cm/s2
From the given equation of the oscillation, we obtain,
The angular frequency of the oscillation ω=π4
The amplitude of the particle is a=1

So, the maximum acceleration of the particle under oscillation is given as:
amax=ω2a=(π4)2×1

=0.62 cm/sec2 [a=1]

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