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Question

A particle of mass 100g is executing SHM with amplitude of 10 cm. When the particle passes through the mean position at t=0 its kinetic energy is 8 mJ. What is the equation of simple harmonic motion if initial phase is zero?

A
y=0.1 cos 4t
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B
y=0.1 sin 4t
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C
y=0.1 cos 2t
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D
y=0.1 sin 2t
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Solution

The correct option is B y=0.1 sin 4t
Hence, option B is correct answer.
1380353_1465502_ans_2549f7bdd381479d90eea032c48dd213.jpg

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