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A mass m is resting at equilibrium susp...

A mass m is resting at equilibrium suspended from a vertical spring of natural length L and spring constant k inside a box as shown: , The box begins accelerating upward with acceleration a. Find the maximum speed of the mass ( in cm/s) relative to the box in subsequent motion.( Given : a=1m/ `s^(2)`,m= 3kg, k=1200N/m ) "]

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