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Two point masses of 3 Kg and 6 Kg are attached to opposite ends of a horizontal spring who
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reduced mass = mM/m+M = 3*6/3+6 = 2 so the given system is equivalent to a block of ass 2 kg attached to same spring so f= rootk/m /2pie = root 300/2 / 2 pie = 1.95 = 2 answer is 2) 2Hz |
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