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What will be the acceleration of the 2 blocks after the spring is cut?

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I have this problem regarding the acceleration of each block instantaneously after the spring is cut as shown in figure(Assume that system was in equilibrium before cut).

Taking the reference to the following video: which explains that the lower mass shall have zero acceleration after cut. The doubt is that whether the upper mass shall also have zero acceleration?

Setup

Thanks in advance!

Closed as per community consensus as the post is not graduate-level

asked Mar 18, 2016 in Closed Questions by Suraj [ no revision ]
recategorized Mar 19, 2016 by Dilaton

Voting to close. PO is for postgraduate-level questions only -- PhysicsForums.com would be a better home for this question.

commented Mar 19, 2016 by dimension10 (1,985 points) [ revision history ]
edited Mar 19, 2016 by Dilaton

not able watch video

commented Sep 9, 2018 by priya (0 points) [ no revision ]

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