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Two blocks A (2 kg) and B (3 kg) rest on...

Two blocks A (2 kg) and B (3 kg) rest on a smooth horizontal surface, connected by a spring of stiffness k = 120 N/m. Initially, the spring is relaxed. At t = 0, A is imparted a velocity u = 2 m/s towards right. Find displacement of block A as a function of time.

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The correct Answer is:
`x_(A)=0.12 sin (10 t)+ 0.8 t`
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