Solve Basic Spring Problem: Minimum Distance Between Connected Blocks

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The discussion revolves around a physics problem involving a moving block and two connected blocks at rest via a spring. The main question is to determine the minimum distance between the two blocks to prevent one from hitting the other when impacted by the moving block. Participants clarify that the spring's role is to prevent block B from colliding with block C. The problem requires understanding the dynamics of the spring and the forces involved. Overall, the focus is on analyzing the motion and interactions of the blocks to find the required minimum distance.
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Tell me if this question makes any sense.

One block moving with velocity v_0 hits a system of two blocks at rest connected by an undeformed spring with spring constant k. Find the minimum distance between the blocks attached to the spring. All masses are of equal mass.

I'm not quite sure what to do with this. I don't see what's limiting the distance between the blocks.
 
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Welcome to PF!

Hi fireemblem13! Welcome to PF! :wink:

Block A is moving. There is a spring between blocks B and C. The spring will stop B from hitting C. :smile:
 
So, it's asking the minimum distance B and C can be so that B does not hit C when A hits B?
 

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