physics

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A metal block of mass m is attached to the ceiling by a spring. Connected to the bottom of this block is a string that supports a second block of the same mass m, as shown in the figure . The string connecting the two blocks is now cut.What is the net force acting on the two-block system immediately after the string is cut? What is the acceleration of the center of mass of the two-block system immediately after the string is cut?

  • physics -

    The net force is zero after the string is cut.

    if the net force is zero, the acceleration of the cg is zero.

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